Shaun « Myrons Mopeds

Piston Rings

March 5, 2021

Contents:
1. Explanations
2. Rings for Sale

1. Explanations

Two-Stroke Piston Ring Types C, T, L

type C = Common “square” shape (cross-section)
Listed as: D x h x w

type T = Trapezoidal “slant top” shape (cross-section)
Listed as: D x h1/h2 x w

type L = L-shape aka “Dykes” shape (cross-section)
Listed as: D x h1/h2 x w1/w2

Two-Stroke Ring Gap Types N, I

gap N = GN Grano Normale gap style is for ring pin on side of ring groove
gap I = GI Grano Interno = gap style is for ring pin in center of ring groove
gap (blank) is for L-ring gap style, ring is like a GI but groove is like a GN

GN gap (aka FG)
pin on side of groove

GI gap style
pin inside groove

2. Rings for Sale

price is for each ring, unless noted. All rings are for 50cc engines, unless noted.

size x height x width 00 type gap price under 38 mm

36.50 x 1.50 /.0 x 0.1/0.1 C N $10.0
222812 Tomos MC36 36cc

size x height x width 00 type gap price 38 to 38.9 mm

38.00 x 1.50 /.0 x 0.1/0.1 C I $10.0
0215.100.100 Sachs 1979-on 504,505 1C,1D upper
Zanetti (front engine)

38.00 x 1.5/1.3 x 1.60 /7 T N $17.0
223707 Tomos A55 (2001-06) superseded in ’07 to 236802

38.00 x 1.50 /.0 x 0.1/0.1 C N $9.00
236802 Tomos A35 (1991-06), Tomos A55 (2007-on)
000.672.5110 Derbi 1976-1986 lower only, Odyssey, Solo

38.00 x 2.0/1.0 x 1.5/0.4 L N $10.0
000.802.5110 Derbi 1976-1986 upper (fits Puch loose inner)

38.00 x 2.0/1.0 x 1.6/0.6 L N none
328.110.9601 Puch 1979-1980 deluxe models upper

38.00 x 2.00 /.0 x 0.1/0.1 C N $13.0
331.110.1601 Puch rounded edge for aluminum cylinder

38.00 x 2.00 /.0 x 0.1/0.1 C N $9.00
320.110.0601 Puch except some ’79-80 upper
0215.009.000 Sachs 504, 505 1A,1B both, 1C,1D lower
044754 Tomos A3 1975-1990, AMF BHE900 rear engine
26.1001 Morini S5K, S5K2, 2M, 3M, F48

38.00 x 2.00 /.0 x 0.1/0.1 C I none
1970-71 Jawa 50 3-speed on Indian Boy Racer

38.00 x 2.50 x 1.50.7/0.7 C N $11.0
71.0802.0 4600 Minarelli V1 1hp 20mph, Sears Allstate, early Puch

38.00 x 2.50 /.0 x 0.1/0.1 C flat none
Solex 45cc 1946-1954 use 38.00 x 2.50 C N

38.20 x 1.50 /.0 x 0.1/0.1 C N $10.0
182518 Piaggio 79-later & some 78s lower ring

38.20 x 2.00 /.0 x 0.1/0.1 C N $16.0
166945 Piaggio 78-80 USA-type, must file down a 077775
26.1002 1os Morini S5K, S5K2, 2M, 3M, F48

38.20 x 2.0/1.0 x 1.8/.75 L N $14.0
182519 Piaggio 79-later & some 78s upper ring

38.20 x 2.50 x 1.50.7/0.7 C N none
71.0852.7 4610 Minarelli 1os V1 1hp 20mph, Sears Allstate, early Puch

38.205x1.9/1.0 x 1.5/0.4 L N $8.00
000.802.5110 1os Derbi 1976-1986 upper ring

38.205x2.0/1.0 x 1.9/0.5 L N $9.00
0
38.205x1.50 /.0 x 0.1/0.1 C N $15.0
000.672.2511 1os Derbi lower

38.25 x 1.50 /.0 x 0.1/0.1 C N $21.0
0 made from a filed 38.4 x 1.5

38.25 x 2.00 /.0 x 0.1/0.1 C N $16

38.40 x 1.50 /.0 x 0.1/0.1 C N $14.0
132515 std or 1os Piaggio lower ring, 79-later & some 78s

38.40 x 1.5/1.3 x 1.60 /7 T N none
3010010 Kinetic TFR (Vespa Si remake) 95-later

38.40 x 2.00 /.0 x 0.1/0.1 C N $10.0
077775 Piaggio 77-earlier & some 78s, early Kinetic

38.40 x 2.0/1.0 x 1.8/.75 L N none
G.68473 std or 1os Piaggio upper ring, 79-later & some 78s

38.40 x 2.50 x 1.50.7/0.7 C N $9.00
71.0852.7 4620 Minarelli 2os V1 1hp 20mph, Sears Allstate, early Puch

38.50 x 1.50 /.0 x 0.1/0.1 C N $12.0
227758 1os Tomos A35

38.50 x 2.00 /.0 x 0.1/0.1 C N $10.0
044751 1os Tomos A3

38.60 x 1.50 /.0 x 0.1/0.1 C N $9.00
137693 1os or 2os Piaggio

38.60 x 2.00 /.0 x 0.1/0.1 C N $14.0
98196 1os Sachs 504, 505, 2os Piaggio 79- lower

38.60 x 2.0/1.0 x 1.8/.75 L N $13.0
137690 1os or 2os Piaggio upper ring, 79-later & some 78s

38.70 x 1.50 /.0 x 0.1/0.1 C N $16.0
71.0803.0 4635 Minarelli V1 (US 1979-on and some ’78)

38.80 x 2.0/1.0 x 1.65/.6 L N $11.0
4.7470.5140 Demm Smily upper
68.0116.0 Minarelli P4 (export al-cyl, Compact System, Radiale) upper

38.80 x 2.0/1.0 x 1.8/.75 L N $11.0
137691 2os Piaggio upper ring

38.80 x 1.50 x 1.50.7/0.7 C N $10.0
71.0805.0 4640 Minarelli V1 (US to-1978)
68.0115.0 Minarelli P4 (export iron-cyl, Sport Quadro) both
68.0115.0 Minarelli P4 (export al-cyl, Compact System, Radiale) lower
137694 2os Piaggio upper ring

38.80 x 1.50 /.0 x 0.1/0.1 C I $11.0
22350-65 Aermacchi Harley Davidson M50 1965-66 stroke 42

38.80 x 2.00 /.0 x 0.1/0.1 C N $10.0
4.7470.5100 Demm Smily lower

size x height x width 00 type gap price 39 to 39.9 mm

39.00 x 1.00 1./x 1.7/0.7 C N $19.0
26.1056 Morini S5N, S5GS kids off road, both

39.00 x 1.2/1.0 x 1.70 /7 T I none
13011.GE2.305a Honda NS50 upper

39.00 x 1.20 x 1.85 /0..7 C I $10.
13011.GE2.305b Honda NS50 lower

39.00 x 1.50 1./x 1.7/0.7 C N $10.0
71.0855.7 4650 1os Minarelli V1, P4, P4 (alum cyl) lower
26.1044 Morini S5T, S5E, S5ET kids off road, lower

39.00 x 1.50 1./x 1.7/0.7 C I $10.0
22351-65 1os Aermacchi Harley Davidson M50 1965-66

39.00 x 2.00 1./x 1.7/0.7 C I $12.0
22148 Motobecane (after 06-76), Di Blasi R7 most, Morini S5R lower

39.00 x 2.00 1./x 1.7/0.7 C N $10.0
14821 Motobecane (before 07-76), Di Blasi R7 (some)

39.00 x 2.0/1.0 x 1.8/0.7 L N $19.0
26.1003 Morini S5R, S5T alum. cylinder (upper ring)

39.03 x 2.00 1./x 1.7/0.7 C I $12.
2812200 Jawa 207 1970-83 standard

39.20 x 1.50 1./x 1.7/0.7 C N $15.0
71.0855.7 4660 2os Minarelli V1, P4, P4 (al-cyl) lower

39.20 x 1.50 1./x 1.7/0.7 C I none
22352-65 2os Aermacchi Harley Davidson M50 1965-66

39.25 x 1.2/1.0 x 1.70 /7 T I $19.
13012.GE2.305a 1os Honda NS50 upper

39.25 x 1.20 x 1.85 /0..7 C I $10.
13012.GE2.305b 1os Honda NS50 lower

39.28 x 2.00 x 1.65 /0..7 C I $14.0
2812201 1os Jawa 207 1970-83

39.40 x 1.50 1./x 1.7/0.7 C N none
71.0855.7 4670 3os Minarelli V1, P4, P4 (al-cyl) lower

39.40 x 1.50 1./x 1.7/0.7 C I none
22353-65 3os Aermacchi Harley Davidson M50 1965-66

39.40 x 2.50 1./x 1.7/0.7 C N $11.0
Rizzato Califfo 1978 (Rizzato 119 engine)

39.50 x 1.2/1.0 x 1.70 /7 T I none
13013.GE2.305a 2os Honda NS50 upper

39.50 x 1.20 x 1.85 /0..7 C I $10.
13013.GE2.305b 2os Honda NS50 lower

39.50 x 1.70 x 1.60 /0..7 C flat $10.0
60817 Solex rings (3) no locating pins

39.53 x 2.00 x 1.65 /0..7 C I $19.0
2812202 2os Jawa 207 1970-83

39.60 x 1.50 1./x 1.7/0.7 C N $17.0
71.0855.7 4680 4os Minarelli V1, P4, P4 (al-cyl) lower

39.80 x 1.50 1./x 1.7/0.7 C N $17.0
71.0855.7 4690 5os Minarelli V1, P4, P4 (al-cyl) lower

39.80 x 2.50 1./x 1.7/0.7 C N none
1os Rizzato Califfo 1978 (Rizzato 119 engine)

size x height x width 00 type gap price 40 to 40.9 mm

40.00 x 1.2/1.0 x 1.60 /7 T N $14.0
633086 China 49cc two-strokes upper, most

40.00 x 1.2/1.0 x 1.70 /7 T I $14
2W1.11610.0000a Yamaha YSR50 upper, PGO Star 50 upper, others

40.00 x 1.20 x 1.85 /0..7 C I $13
2W1.11610.0000b Yamaha YSR50 lower, PGO Star 50 lower, others

40.00 x 1.5/1.3 x 1.80 /7 T N $14.0
13011.147.005a Dailim Trac, upper for Honda NC50,PA50,Yamaha QT50

40.00 x 1.50 1./x 1.7/0.7 C N $10.0
480510 Batavus M48, M56, Trac (not Daelim), Flandria Bermuda
13011.147.005b Honda lower for NC50,PA50, Yamaha QT50 lower
G7347 Benelli G2, 1965-75 Ward Riverside, Benelli mini-cycles
26.1044 Morini S5R, S5T alum. cylinder (lower ring)

40.00 x 1.50 1./x 1.7/0.7 C I $10.0
551913 Morini MO Gyromat,Convert (early ’70s MO1,MO2)
0F0.250.0111 Derbi 1986-1989 flat reed, Kreidler Flory

40.00 x 2.00 1./x 1.7/0.7 C N $10.0
307.021.00 Garelli all 1970’s, 00’s Avanti/Mont (most)
Casal K177, 2000’s Hero Majestic Pacer

40.00 x 2.0/1.0 x 1.8/0.7 L N $10.0
310.001.00 Garelli Monza GT upper

40.00 x 2.50 1./x 1.7/0.7 C I $14.0
38315 Peugeot 102, 103 (almost all US models)

40.20 x 1.50 1./x 1.7/0.7 C N $22.0
G7347/2 1os Benelli, 1os M Ward, filed down 40.25

40.20 x 2.00 1./x 1.7/0.7 C N $15.0
308.027.00 1os Garelli

40.25 x 1.00 1./x 1.7/0.7 C N $12.0
633087 1os China 49cc two-stroke scooter

40.25 x 1.50 1./x 1.7/0.7 C N $14
480511 1os Batavus M48

40.25 x 1.5/1.3 x 1.80 /7 T N none
13021.147.005a 1os Honda NC50, PA50 upper

40.25 x 1.50 1./x 1.7/0.7 C N $15.
13021.147.005b 1os Honda NC50, PA50 lower
480511 1os Laura M48

40.30 x 1.50 1./x 1.7/0.7 C N $19.0
4641b Minarelli V1HL and V1L lower, filed down 40.5

40.30 x 2.0/1.0 x 1.8/0.7 L N none
4641a Minarelli V1L upper

40.40 x 1.50 1./x 1.7/0.7 C N none
G7347/4 2os Benelli G2, 2os M Ward and mini-cycles

40.40 x 1.50 1./x 1.7/0.7 C I $9.00
26.1045 Morini MO1, MO2, MO4, M1

40.40 x 2.00 1./x 1.7/0.7 C N $12.0
308.028.00 2os Garelli

40.50 x 1.5/1.3 x 1.80 /7 T N none
13031.147.005a 2os Honda NC50, PA50 upper

40.50 x 1.50 1./x 1.7/0.7 C N $11
13031.147.005b 2os Honda NC50, PA50 lower
480512 2os Batavus M48

40.50 x 2.50 1./x 1.7/0.7 C I $12.0
33648 1os Peugeot 102, 103 (some, but none in CA)

40.60 x 1.50 1./x 1.7/0.7 C N $10.0
G7347/6 3os Benelli, 3os M Ward
71.0860.7 4651b 1os Minarelli V1L lower

40.60 x 1.50 1./x 1.7/0.7 C I $12.0
26.1046/6 1os Morini MO1, MO2, MO4, M1

40.60 x 2.00 1./x 1.7/0.7 C N $10.0
308.029.00 3os Garelli

40.60 x 2.0/1.0 x 1.65/.6 L N $15.
71.0860.7 4651a 1os Minarelli V1L upper

40.75 x 1.5/1.3 x 1.80 /7 T N none
13041.147.005a 3os Honda NC50, PA50 upper

40.75 x 1.50 1./x 1.7/0.7 C N none
13041.147.005b 3os Honda NC50, PA50 lower

40.80 x 1.50 1./x 1.7/0.7 C I $12.0
26.1046/8 2os Morini MO1, MO2, MO4, M1

40.80 x 1.50 1./x 1.7/0.7 C N $9.0
71.0860.7 4661b 2os Minarelli V1L lower

40.80 x 2.0/1.0 x 1.65/.6 L N none
71.0860.7 4661a 2os Minarelli V1L upper

40.80 x 2.00 1./x 1.7/0.7 C N $10.0
308.030.00 4os Garelli

size x height x width 00 type gap price 41 mm and over

41.00 x 1.2/1.0 x 1.90 /7 T I none
13010.GJ5.015a Honda TG50, NN50 Gyro upper

41.00 x 1.2/1.0 x 1.90 /7 C I none
13010.GJ5.015b Honda TG50, NN50 Gyro lower

41.00 x 1.5/1.3 x 1.80 /7 T I $14.0
12140-16B10 Suzuki FY50, FZ50, FA50 upper

41.00 x 1.50 1./x 1.7/0.7 C N $10.0
Minarelli V1 Industriale 53cc stroke 42

41.40 x 1.50 1./x 1.7/0.7 C I $12.0
Unknown only one

42.00 x 1.50 1./x 1.7/0.7 C N none
Minarelli V1 Carrabela 58cc stroke 42

42.00 x 2.00 1./x 1.7/0.7 C N $10.0
Puch DS60

42.00 x 1.50 1./x 1.7/0.7 C flat $40/set
E660-00-50 Indian 4-stroke ring set comp(2) oil(1)

42.25 x 1.50 1./x 1.7/0.7 C flat $40/set
E660-10-50 1os Indian 4-stroke set comp(2) oil(1)

42.50 x 1.50 1./x 1.7/0.7 C flat none
E660-20-50 2os Indian 4-stroke set comp(2) oil(1)

42.75 x 1.50 1./x 1.7/0.7 C N $12.0
big bore kit appr 60cc only two

43.00 x 1.50 1./x 1.7/0.7 C N $12.0
4635HP big bore kit appr 60cc only 3

43.00 x 2.0/1.0 x 1.65/.6 L N $16.0
big bore kit appr 60cc only one

43.50 x 1.50 1./x 1.7/0.7 C N $10.0
big bore kit appr 60cc

44.00 x 1.50 1./x 1.7/0.7 C N $10.0
G-591 Benelli Dynamo 65 59cc stroke 39
MF-554 big bore kit Peugeot 103 59cc
2
44.00 x 1.50 1./x 1.7/0.7 C I $11
22350-67 Aermacchi Harley Davidson M65 1967-72 64cc stroke 42

44.20 x 1.50 1./x 1.7/0.7 C I none
22351-67 1os Aermacchi Harley Davidson M65 1967-72 64.5

44.40 x 1.50 1./x 1.7/0.7 C I none
22352-67 2os Aermacchi Harley Davidson M65 1967-72 65cc

45.00 x 1.50 1./x 1.7/0.7 C N none
71.8187 Minarelli P4-70, P6-70 70cc

45.20 x 1.50 1./x 1.7/0.7 C N none
71.8187 1os Minarelli P4-70, P6-70 70cc

45.40 x 1.50 1./x 1.7/0.7 C N none
71.8187 2os Minarelli P4-70, P6-70 70cc

Ring Information

Pinned or Not Pinned: Most moped piston rings are two-stroke style, where there are pins in the ring grooves of the piston that keep the rings from rotating around. Two stroke cylinders have holes or ports that the ring ends can snag on. So two stroke rings are pinned to the piston. Four stroke cylinders do not have any holes, so four stroke rings are not pinned. Knowing about those pins is important when installing.

Getting the right rings: If your model is not in the applications, then you must measure the bore and the ring thickness. A calipers is the best tool to measure the bore (ring diameter) and ring thickness. Sometimes your rings might not be original, for many reasons. The piston might be aftermarket with thinner rings. The cylinder might be bored out to an oversize bore. Some mopeds came with more than one piston size or ring style.

Break a ring, how not to: Two stroke pistons have little pins (stumps, bumps) in the piston ring grooves that prevent the rings from rotating. Knowing where each ring locating pin is, and aligning the ring gap over the pin during cylinder installation, is the key to not breaking the ring.

Measuring wear: A new piston ring is the best tool to measure how worn a cylinder is. Conversely, a new cylinder is the best tool to measure how worn a ring is. To measure the wear of a ring, you need a perfectly round cylinder of a precisely known bore. A worn cylinder that has not been honed will still have its original new bore at the very top, above where the rings rub at. A new ring in a new cylinder should have a very small end gap of .004 to .008″. A worn but still OK cylinder with a new ring will have a gap of .0010 to .018″. A worn cylinder and ring both will have an end gap of over .020″(.5mm). A badly worn cylinder and/or ring will have a huge gap, over .030″(.75mm). Ring gap is measured with a feeler gauge.

Classifying Piston Rings

Classifying rings: Rings get mixed up and are difficult to tell the size, unless a perfectly round cylinder of an appropriate size is available to place the ring in. If you try to squeeze a piston ring into a circle with just fingers, it inevitably becomes a very rounded polygon, or at best an ellipse. So the measurement becomes inaccurate. At right is how Myrons Mopeds’s Jawa piston rings were classified, using a piece of aluminum tubing with a tight fitting piston inside it to hold the tube round, and the test ring square. From top to bottom, 39.03 x 2.0, 39.28 x 2.0, 39.53 x 2.0, 39.78 x 2.0mm. Each ring increases in diameter by 0.25mm, so the circumference increases by Pi times that, or about 0.8mm. Here the inside of an old fishing pole tube is 39.78mm, perfect for the 3rd oversize 39.78 ring, on the bottom, with a gap of almost zero. Each gap is 0.8mm more because each ring is 0.25mm less diameter. It is important that the piston and ring fit the cylinder properly.

Filing down: To make a ring slightly smaller, one of the two ring ends can be filed down, while preserving the shape. To reduce the size (diameter) by 0.20 mm, the end must be filed down by pi times that, 0.63 mm. When a filed down ring is installed in a cylinder smaller than it was designed for, two things change. The tension is greater, and the shape is slightly non-circular. So filed rings need a longer break-in period, to wear down the higher places. With 38 to 41 mm rings, the size can be reduced by 0.2mm with about 30 minutes of break-in, and by 0.5mm with about 2 hours of break-in. After break-in the rings have a mirror polish all around.

Why is the width not specified? Because the inner side of the ring does not touch anything. The ring has spring tension pushing it outwards, keeping the bottom (inner) surface from touching the bottom of the ring groove. So the ring width can be any amount, from about half the groove depth, to the groove depth. The exact ring width is not important. Exact ring height and diameter are important.

Sachs Engine Models

February 27, 2021

1955 Sachs poster

1. Sachs Engines

Welcome. “Fichtel & Sachs” was founded in 1895 by Ernst Sachs and Karl Fichtel, in Schweinfurt Germany. Ernst Sachs was a racing cyclist and technical wiz, while Karl Fichtel was a business manager. They made hubs and spindles for bicycles and lorries. Ernst Sachs designed and patented a new bicycle hub, the “coaster brake” in 1894, which sold successfully, and also invented the “free-wheel” in 1903. Fichtel died in 1911, and Sachs, in 1932. The first Sachs engine did not come out until 1930.

Sachs introduced their first Saxonette moped in 1937, a 60cc two-stroke 1.2 hp “motor wheel” where the rear wheel and motor were a unit. 320,000 were made in 1937, and 500,000 in 1938. Read more at https://en.wikipedia.org/wiki/Sachs_Motorcycles

Sachs 301/A

Sachs 502/3

Sachs 501/2

Sachs 504/1

Sachs 505/1 and 505/2

Sachs engines have the following numbering scheme: SSX/YZ(W)

SS is the engine size 30, 50, 80, 100, 150, 175 (50 for US models)
X is the bottom end designation 1, 2, 3, 4, 5, 6 (4, 5 or 8 for US models).
Y is the number of speeds 1, 2, 3, 4, 5, 6 or A ( 1 or A for US models)
Z is the cylinder designation, and represents the speed restrictions applied, and may be A, B, C or D
W is an additional designation sometimes included on later models and import models to identify other peculiarities. A “K” for example indicates the kickstart version.

Examples:

301/A is 30 cc size, type “1” bottom end (rear bicycle wheel), “A” automatic transmission
501/4A is 50 cc size, type “1” bottom end (1960’s kick-start), “4” speed manual trans.
502/2A is 50 cc size, type “2” bottom end (1960’s with pedals) “2” speed manual trans.
504/1A is 50 cc size, type “4” bottom end (1970’s no pedals), “1” speed, “A” speed version
505/1D is 50 cc size, type “5” bottom end (1970’s with pedals), “1” speed, “D” speed version
508/A is 50 cc size, type “8” bottom end, (80’s 2sp no pedals) “A” automatic transmission
1005/5A 100 cc size, type “5” bottom end (1980’s kick-start), “5” speed, “A” speed version
1255/6A 125 cc size, type “5” bottom end (1980’s kick-start), “6” speed, “A” speed version

Benelli G2 G2K

January 30, 2021

1. Pedal models with G2-G or G2-R engine
Benelli G2-US, Blazer-US, G2, Bobo
Guzzi G2-US, Chiü-US, Robin-US, Chiü

2. Kick models with G2K-G or G2K-R engine
Gentleman (late), Motorella, G2 Elle, G2 KS

Specifications Table all with 40mm bore and 39mm stroke.

models (US in blue)	engine	comp	hp	gears	sprs.	tires
’69-76? Bobo	G2-R			21 71	11 46	2.00-16
’69-76? Guzzi Chiü	G2-R			21 71	11 46	2.25-16
’70-76 Gentleman	G2K-R					2.25-16
’74-80? Motorella	G2K-R	8.5	1.3	22 70	11 46	3.50-10
’76-77 Guzzi Chiü	G2-R		1.5	21 71	11 46	2.25-16
’76-77 Blazer-25	G2-R		1.5	21 71	11 46	2.25-16
’76-78 Guzzi Robin	G2-R		1.5	21 71	11 46	2.25-16
’77-80 G2-US-30	G2-G	8.5	1.5	21 71	12 45	2.25-16
’78-80 Guzzi G2-30	G2-G	8.5	1.5	21 71	12 45	2.25-16
’77-80 G2-25	G2-G	8.5	1.5	21 71	11 46	2.25-16
’78-80 Guzzi G2-25	G2-G	8.5	1.5	21 71	11 46	2.25-16
’77-80? G2-UK	G2-G	8.0	1.34	21 71		2.25-16
’77-80? G2	G2-G			21 71		2.25-16
’78-80? G2 Elle	G2K-G	7.9	1.36	22 70	9 48	2.25-16
’78-80? G2 KS	G2K-G	7.9	1.36	22 70	9 48	2.25-16

1. Pedal models with G2-G or G2-R engine

G2 engine: (Gentlemen Due 49cc) is on US models 1977-80 Benelli G2, 1976-77 Benelli Blazer, 1978-80 Moto Guzzi, 1977-80 Moto Guzzi Robin and UK models 1974-80? G2. The G2 engine is the second generation of the late 60’s GM engine, a 25mph horizontal cylinder one-speed automatic, with a Dellorto 9mm sipping straw. Like the GM, the G2 engine does not have built-in pedals. The external pedal system is unusual with both pedal and motor chains on the left side. Most bicycle chains are on the right side, so a special reverse or “left hand” freewheel is required.

1. Benelli G2 engine 49cc (40 x 39) gears 21/71
2. G2 dual left chain drive, motor sprockets 12/45 or 11/46’70-76?

G2 G engine (long exhaust, Adler clutch, dome piston)

1. ’77-80 Benelli G2 (US) 1.5 hp, 8.5 cr
2. 1978 Benelli G2 (UK) 1.34 hp (1 kW), 8.0 cr
3. 1978 Guzzi G2 (US) 1.5 hp, 8.5 cr
4. ’78-80 Guzzi G2 (US) Berliner Motor Corp in NJ

G2 R engine (short exhaust, Rimoldi clutch, flat piston)

1. ’76-78 Guzzi Robin (US)
2. 1971 Guzzi Chiü
3. ’76-77 Benelli Blazer (US)
4. 1970 Benelli Bobo

Benelli G2 engine specs: 40mm piston with same vertical dimensions as Morini, 8.5 comp. ratio, 25mph, 1.5hp at 4400rpm, 150mpg. sprockets 12 x 46T, trans oil 4 oz of 10w40 motor oil, fill plug on lower right is also oil level check plug.

Benelli G2-US components: 2.25-16″ tires, 1.35-16″ rims, Benelli one speed automatic engine, Dellorto SHA 14/9 carburetor, #44 jet. Dansi 101813 magneto (external ignition ground type). CEV 2139 bullet head light, CEV 9400.2 tail light (with resistor for external ignition ground magneto), CEV plastic slide clamp-on switches, PV controls, Grimeca hubs (rear hub is special, has both chains on left side, Benelli only) and brakes, 11mm axles, Veglia speedometer with LH driver, 12×1 female gas valve with special long detachable handle-shaft that goes through a hole in the side panel, cables are all single-ended, seat post 25.0 x 22mm.

Benelli Bobo: The European version of the Blazer is called Bobo. It has Domino controls, different lights and electrical, and no speedometer.

Benelli Blazer-US: The Benelli Blazer (Bobo) is made by Motobi. It is like a G2 but with a standard tube frame and separate gas tank. The Blazer version of the Bobo had the same parts catalog B1 to B4, except for the last page B5 that showed all of the changes. The controls (and start cable) changed from Domino to PV. A CEV 60mm speedometer, cable and driver were added. The CEV 2139 “bullet” headlight was round, bigger, brighter and required more watts. The CEV 9350 tail light also was bigger, brighter and required more watts. The 6V 21/5W #1154 bulb had a brake light and the lens had side reflectors. The switches were CEV round chrome clamp-on type, with English language labels. Right thumb operates engine stop. Left thumb operates lights and horn. The Blazer magneto generated more watts than the Bobo magneto.

Here three parts catalogs are combined into one list.

1. G ’77-80 Benelli G2-US, ’77-80 Guzzi G2-US, ’70,’80 #’s
2. R ’77-79 Guzzi Robin-US, ’70’s Chiü, ’80 part numbers
3. B ’76-77 Benelli Blazer-US, 70’s Bobo, ‘70, ’75 part #’s

1. G Adler clutch, also on Demm
2. G R start cable for PV controls
3. crankshaft, 4. crankcase
5. B start cable for Domino controls
6. R B Rimoldi clutch, also on Puch

G G2-US, R Guzzi Robin-US, B Blazer-US ENGINE PARTS .

.# GRB  0 1975# 000 1980# 0 price 0 1970# 0
01 100 0000000000 71801525 N/A    ‌0000 start cable gray 2P ∅7 φ6 52 x ?
01 100 0000000000 00000000 $10.0 ‌‌0000 substitute gray 1P ∅7 52 x 57″
01 001 2391270799 00000000 $10.0 ‌FA3706/8 s cable blk 1L ∅6 52 x 57″
01 010 0000000000 48801570 $10.0 ‌‌0000 start cable black 1P ∅7 52 x 57″
02 111 2250050815 48801870 $0.50 ‌G7191 start stop cap for 1P F5C
03 111 3260440799 48802570 $4.00 ‌G10 start spring 6.5-7.0 id x 60-75
04 111 4380010817 48093970 N/A    G7947/C start lever-shaft ∅11
05 111 9010320200 90706107 $$.$$ ‌G4 0 start shaft seal ring
06 111 3140120832 48087670 none. ‌G7948 start lever inner
07 111 9040090100 90271011 $2.00 ‌G7949 start shaft circlip 11 x 1.0
08 111 2470380826 48001670 N/A    N8 0 clutch cover
09 333 9820480126 98620330 $1.00 ‌MU1224 cover screw M6x30 allen
10 444 9820510126 98620345 $1.20 ‌MU3732 cover screw M6x45 allen
11 101 3281270799 48015581 N/A 0000 Benelli emblem
11 010 0000000000 71015500 N/A    0000 Moto Guzzi emblem
13 111 9170430125 98052330 $1.00 ‌H8103 cover and ex. bolt M6 x 30 hex
14 101 9700210149 95021106 $0.25 ‌G 000 toothed washer ∅6
15 111 2210100799 39018800 $$.$$ ‌UI189 oil filler and check plug
16 111 3830100799 90714126 $$.$$ ‌L418 check plug gasket
17 111 9160740125 98054310 $$.$$ ‌MU234 oil drain plug
18 111 2871370799 90714062 $$.$$ ‌L419 drain plug gasket
19 111 2010300832 48085570 $6.00 ‌G373 starter push rod ∅5 x 25
20 111 3830270799 48086470 $1.50 ‌G369 starter washer ∅5 ∅11.5 x 0.5
21 101 2030430799 71083200 $6.00 G418 clutch clip ring ∅95 x 2.0
21 010 0000000000 48083270 N/A 0000 clutch clip ring ∅95 x 2.0
22 101 2630720799 71082800 $37.0 G415 starter disk
23 111 2640260799 92701113 $2.00 ‌N161 clutch nut M10-1.0 x 8 hex17
24 100 0000000000 71080025 N/A    0000 Adler (G) clutch assy
24 011 2720020799 00000000 N/A    0000 Rimoldi (B) clutch assy = Puch
25 100 0000000000 71081700 N/A    0000 housing G M30-1.5 int. puller
25 011 7740120799 48083570 N/A    G374/1 housing B 2 M6-hole puller
26 111 9040130100 90271015 $1.50 MU3813 circlip ext. ∅15
27 111 3780160799 48086870 $$.$$ ‌G5 washer ∅15 ∅26 x ??
28 100 0000000000 71084425 N/A    0000 clutch drum with gear G ∅95 id
28 011 7930420799 48081970 N/A    G7944/1 adjustment screw B
29 100 0000000000 71082000 N/A    0000 clutch shoe-weight G
29 011 7640010799 48082070 N/A    G7944/2 clutch shoe-weight B
30 100 0000000000 71084100 $12.0 0000 circular coil spring G
30 011 7590250799 48083570 N/A    G7944/3 coil spring B
31 100 0000000000 71082600 $9.00 0000 triangular spring plate G
31 011 9040080100 90271010 $1.50 MU8153 circlip B ext. ∅10
32 111 0000000000 48802470 $3.00 M277 pinch bolt P20 for 1P
32 001 7190030799 00000000 N/A    G416 clutch drum bare B
33 011 7190040799 48084470 N/A    G416/1 clutch drum with gear B
34 101 3000280815 48070470 N/A    G2 drive gear 21 teeth
35 111 2180340815 48070370 $$.$$ ‌G3 clutch drum bushing 15-??-??
36 111 2180370815 48083870 $$.$$ ‌N18 clutch spacer with lip 15-20-??
38 111 2640240799 48219270 $$.$$ ‌L837 right drive shaft nut
39 111 3000290815 48215870 N/A    N21 driven gear 71 teeth
40 111 9030300100 90272035 none   N12 circlip int. ∅35
41 111 9220080100 92201117 $10.0 ‌MU7038/1 R drive bearing #6003
42 111 9580090143 91701350 $$.$$ ‌MU164 drive shaft woodruff key
43 111 2000130815 48213670 N/A    N19 drive shaft
44 111 9220150100 92201215 $10.0 ‌MU86/1 L drive bearing #6202
45 111 9001190200 90402535 $5.00 ‌N34 drive shaft seal 25-35-7
46 111 3030080815 48330570 N/A    N20/1 sprocket 11 tooth
47 111 2640230799 92701122 $$.$$ ‌U124 sprocket nut
48 666 9820520126 98620350 $1.40 ‌MU1230 case bolt M6x50 allen
49 111 9820530126 98620355 $0.80 ‌lo-F case bolt M6x55 allen
50 111 2870450799 48001770 $12.0 ‌N25 trans cover gasket
51 111 2350080815 48001170 N/A    N3 right case half
52 111 3680220815 35002000 $$.$$ ‌G507 lo-F centering tube ∅11
53 111 9000900200 90402035 $7.00 ‌N33 right crank seal 20-35-7
54 111 9220140100 92201216 $10.0 ‌MU86 L/R crank bearing 6202C3
55 111 9580070143 91600337 $1.50 ‌MU3817 clutch key M86 3 x 5
56 111 4250130815 48001170 N/A    N159 right crank half
57 111 3700090815 48065070 N/A    G633 crank pin
58 111 2150210815 48061670 N/A    G628 con rod
59 111 2900060799 92252221 N/A    G327 rod bearing
60 111 4250150815 48064370 N/A    N136 left crank half
61 111 9580060143 91600238 $2.00 ‌G7274 flywheel key M81 2.0 x 3.7
62 111 9000510200 90401535 $7.00 ‌N11 L crank seal 15-35-10 7
63 111 2870440799 48000970 $12.0 ‌N24 case gasket
64 111 2871380799 90714080 $$.$$ ‌L493 vent ring gasket
65 111 0000000000 48004671 N/A L492 transmission case vent
66 111 2880590799 91551070 N/A UI281 magneto wires grommet
67 111 2350100815 48000870 N/A N2 left case half use set #147
68 222 9830420125 98200410 $1.30 MU1147 stator screw M4 x 10 slot
69 111 9840750125 98280614 none   N7 screw M6 x 14 slot-sunk
70 111 2470360815 48000470 N/A N6 magneto cover base

IIN means Internal spark, Int. ground, No brake light
EEB means External spark, Ext. ground, Brake light

.# GRB Dansi Magnetos with 82 id rotors, 94 od stators
71 011 4270270799 48712471 N/A N14 100892 ∅110 ⇒ alum. IIN
71 011 on ’67-75? Benelli Gentleman, Bobo, Guzzi Chiu (Euro)
00 011 0000000000 48712490 N/A 000 101441 ∅103 ⇒ steel EIB
30 011 on ’76-77 Benelli Blazer, Guzzi Robin (some) #530
71 110 0000000000 71712425 N/A 000 101813 ∅103 ⇒ steel EEB
71 110 on ’77-80 Benelli G2, Guzzi Robin (some)

.# GRB  0 1975# 000 1980# 0 price 0 1970#
72 111 9713010210 95101275 $2.00 ‌UI7091 plain washer ∅9 x 13
73 111 9700290149 95021109 $1.80 ‌N28 toothed washer ∅9 x 13
74 111 2640250799 48719570 N/A ‌ UI7090 flywheel nut M9-1.0
74 111 uses a 14 mm socket that fits outside the flywheel center hole
74 111 0000000000 00000000 $7.00 ‌Garelli substitute M9-1.0
74 111 uses a 12 mm socket that fits inside the flywheel center hole
75 101 2470270820 48000371 N/A ‌ G7775 mag. cover alum ∅126
75 010 0000000000 48000370 N/A ‌ G0000 mag. cover alum ∅126
76 001 2880860799 45717600 N/A G0000 spark plug cap boot
77 111 2900030799 92252012 $11.0 ‌LB157 piston bearing 12-15-15
78 111 3970070815 48061270 $11.0 ‌LB156 piston pin ∅12 x 31?
79 222 9030070100 90272012 $1.50 ‌MU339 piston clip ∅12
80 100 0000000000 70060400 N/A ‌ G7346 piston G bare use #100
80 011 3560630799 71060410 N/A ‌ N257 piston B bare use #100
81 222 2080100799 48060870 $10.0 ‌G7347/S ring Std 40.0 x 1.5 GN
81 222 7000070799 48060872 $22.0 G7347/S2 ring 1os 40.2 x 1.5 GN
81 222 7000080799 48060874 none   G7347/S4 ring 2os 40.4 x 1.5 GN
81 222 7000090799 48060876 $10.0 G7347/S6 ring 3os 40.6 x 1.5 GN
82 111 2870430799 48020870 $6.00 ‌N23 base gasket
83 111 2340630815 48020370 $$.$$ ‌G321 cylinder
84 444 3591380799 96506105 $4.00 ‌G7483 cylinder stud M6 x 105
85 444 9670360110 95000206 $0.20 ‌MU332 head washer ∅6
86 666 9350170116 92602206 $0.30 ‌MU280 head & ex. nut M6
87 111 2870090799 48022070 $7.00 ‌G7010 head gasket
88 111 4000380815 48022470 N/A    N322 head
89 111 9280080200 35717000 $4.00 ‌spark plug W175T2 = NGK B6ES
90 111 2870110799 48115970 $7.50 ‌G7015/1 intake gasket ∅6 x 34
91 111 2870420799 48115570 $9.00 N15 intake spacer ∅6 x 34 x 4
92 110 0000000000 48115070 $26.0 ‌N24 intake G,R ∅6 x 34, ∅12-18
92 001 2320110799 00000000 N/A    N27 intake B ∅6 x 34, ∅10?-18
93 222 9820460126 98622320 $0.70 ‌MU8034 intake screw M6x20 allen
94 100 0000000000 71112611 N/A    carb G Dellorto SHA 14/9 jet 44
94 011 2390480799 48112670 N/A    carb B Dellorto SHA 14/9 jet 45
95 222 3591080799 96506026 $2.00 ‌UI7496 exhaust stud M6 x 26
96 222 9680110249 61013800 $0.25 ‌MU18  exhaust washer ∅6
97 111 2870460799 48120370 $6.50 ‌N30 exhaust gasket 6 x 40
98 100 0000000000 00000000 $70.0 ‌long 2-piece exhaust G
98 011 3920040715 48120470 N/A    N251/1 pancake exhaust B
99 111 7120020799 48061470 N/A    G628/A con rod assy

dome top is 8.5 cr, flat top is 7.9 cr
.G# GRB  0 1975# 000 1980# 0 price 0 1970#  Pistons Complete
100 100 0000000000 70060220 N/A    ‌G7346/C   Std 40.0 Asso dome
100 100 0000000000 70060222 N/A    G7346/C2 1os 40.2 Asso dome
100 100 0000000000 70060224 N/A    G7346/C4 2os 40.4 Asso dome
100 100 0000000000 70060226 N/A    G7346/C6 3os 40.6 Asso dome
100 011 7710060799 71060210 $65.0 ‌N257/C Std 40.0 GOL flat top
100 011 7710070799 71060310 N/A    N257/C2 1os 40.2 Asso flat top
100 011 7710080799 71060311 N/A    N257/C4 2os 40.4 Asso flat top
100 011 7710090799 71060312 N/A    N257/C6   3os 40.6 Asso flat top
.G# GRB  0 1975# 000 1980# 0 price 0 1970#
101 100 0000000000 14717400 $9.00 G7096/1 spark plug cap metal
101 001 0000000000 35717470 $9.00 G7096/1 same
101 010 0000000000 45717400 $6.00 G00000 spark plug cap plastic
102 100 0000000000 69702207 N/A G00000 stator plate G ∅94
102 010 7720060799 00000000 N/A    SD462/3 stator plate B ∅94 =GM
103 111 7420050799 48709570 N/A    G221/11 felt greaser
104 111 7930070799 35707900 $2.50 G221/3 points screw M4 x 8 small
105 101 7230020799 35708600 $15.0 G221/6 condenser M17D
105 010 0000000000 48708670 $15.0 G26/2 condenser M17D
.G# GRB   ignition coil is lower, lights coil is upper0
106 100 0000000000 71715025 N/A G000 ignition source coil M27
106 011 7130060799 48715070 N/A N14/B internal spark coil
106 001 0000000000 48715090 $65.0 G0000ignition source coil M20
107 111 7790140799 48708870 $18.0 SD462/2 points 1-piece M18
108 100 0000000000 71715125 $65.0 G000/0 lights coil M28 6V 25W
108 011 7130050799 48715170 N/A N14/C lights coil
108 001 0000000000 48715190 $65.0 G0000 lights coil M21 6V 15/10W
109 101 7760130799 70718920 $0.40 G221/8 coil lock washer M4 thin
110 101 7930410799 35715750 $1.20 G221/7 coil screw M4 x 25 slot
110 010 0000000000 48715750 $1.60 G0000 coil screw/washer M4 x 25
111 110 0000000000 71712125 N/A G000 flywheel ∅82-103 101813 ⇒
111 011 7800030799 00000000 N/A N14/A flywheel ∅82-110 100892 ⇒
111 001 0000000000 48711681 N/A G000 flywheel ∅82-103 101441 ⇒
112 111 7830060799 48715770 N/A SD404/1 screws and washers
113 111 2230130818 48064070 N/A N325 crankshaft assy
114 to 143 see Dellorto Carburetors
144 100 2731190799 71117510 $10.0 FA3709/1 throttle cable gray 33 x 38″
144 011 0000000000 48117570 $10 G00000 throttle cable black 33 x 38″
145 111 7830080799 48999570 $21.0 G243/6 seal set 3-pc 15-35, 20-30, 25-35
146 111 7830070799 48999070 N/A G242/6 gasket set 7-piece
147 111 2350070816 48000170 N/A N37 case set 2-piece

G G2-US, b Bobo, B Blazer-US FRAME PARTS .

.# GbB 0 1975# 00 1980# 00 price 0 1970# 0
32 100 4080250799 71103911 $15.0 N234 gas cap ∅40 push-in
41 100 0000000000 71105630 $0.00 petcock
44 011 0000000000 48261571 $0.00 N74 right pedal arm

G G2-US, b Bobo, B Blazer-US BODY PARTS .

.# GbB 0 1975# 00 1980# 00 price 0 1970#
02 011 4080250799 71103911 $15.0 N234 gas cap ∅40 push-in
08 011 2871390799 00000000 $0.00 L425 petcock
10 100 0000000000 71120725 $40.0 front exhaust pipe
23 100 0000000000 48261571 $0.00 N74 right pedal arm
38 100 0000000000 71127217 $7.00 exhaust clamp
39 100 0000000000 71127017 $0.00 clamp nut
40 100 0000000000 71127517 $0.00 clamp bolt
41 100 0000000000 71126717 $0.00 seal ring
42 100 0000000000 71123017 $55.0 rear silencer pipe

G. G2-US, b. Bobo, B Blazer-US ELECTRICAL, WHEELS, CONTROLS .

.# GbB 1980# 0 price 0 1970# Electrical .
01 101 00000000 $0.00 wiring harness
02 101 00000000 $0.00 headlight bezel
03 101 00000000 $0.00 headlight glass
04 505 00000000 $0.00 headlight w-clip
05 101 00000000 $0.00 bulb socket clip
06 101 00000000 $0.00 headlight bulb
07 101 00000000 $0.00 bulb socket
08 101 00000000 $0.00 headlight assy
09 101 00000000 $0.00 brake light bulb
10 101 00000000 $0.00 tail light bulb
11 101 00000000 $0.00 tail light lens
12 202 00000000 $0.00 lens screw
13 101 00000000 $0.00 tail light assy
14 101 00000000 $0.00 0
15 101 00000000 $0.00 horn
16 101 00000000 $0.00 0
17 101 00000000 $0.00 0
18 101 71735625 $13.0 L switch CEV 8188 lights-horn
19 101 00000000 $0.00 0
20 202 00000000 $0.00 brake light switch
26 101 71736025 $29.0 R switch CEV 8189 eng. stop
59 101 14717600 $0.00 000000 plug wire boot
63 101 71716510 $0.00 000000 spark coil
64 101 39717300 $0.00 000000 plug wire

.# GbB 1980# 0 price 0 1970# Controls P.V.
21 101 00000000 $0.00 left control assy
22 202 00000000 $0.00 brake cable anchor pin
23 101 00000000 $0.00 left grip
24 101 00000000 $0.00 0
25 101 00000000 $0.00 0
27 101 00000000 $0.00 0
28 101 00000000 $0.00 right control assy
29 101 00000000 $0.00 right grip
30 101 00000000 $0.00 0
31 101 00000000 $0.00 0
32 101 00000000 $0.00 0
33 101 00000000 $0.00 0
83 303 00000000 $0.00 brake pivot pin

.# GbB   1980# 0 price 0 1970# Wheels .
34 444 45615600 $1.50 G7885/I H113 axle washer
35 444 49614300 $4.00 G7885/L H56 lock nut M11 x 6
36 111 71616310 $0.00 000000 front brake spacer
37 111 35615240 $2.00 G127/L H62 brake washer
38 101 48620290 $0.00 G7852/B front plate w/inspect holes
39 222 35626900 $7 - 4 G7885/O H53 cable adjuster
40 222 35626050 $5.00 G7885/C H60 pinch bolt assy
41 222 92602206 $0.60 G7885/A H104a cam nut M6x6
42 222 35635040 $5.00 G7885/B H59 lever
43 222 69622500 $9.00 G7885/D H63 cam shaft
44 444 69638102 $2.50 G7885/F H64s brake spring
45 222 45620500 $25.0 G7885/E H64 brake set
46 444 45615000 $13.0 G7885/P H66 F/R cone M11-1.0
47 222 35614740 $6.00 G7885/Q H68 front dust cover
48 111 92295706 $2.00 G7885/R H67 front bag of 20 balls ¼”
49 222 35814640 $7.50 N156/D H69 front cup ∅32-38.5
50 111 49612200 $0.00 N156/E H146 front hub bare
51 xxx 48631080 $2.50 N118/1 n=36 spoke 174 x 2.5
53 010 71615610 $0.00 G7852/E H147 F no-speedo spacer 9?
53 101 71615610 $0.00 G133/1E F H57 speedo spacer (US) 4?
54 222 71336300 $0.00 L3814/3 chain adjuster
55 111 71634010 $0.00 G7885/M R rear spacer
56 101 48635290 $0.00 G7885/N rear plate w/inspect holes
57 111 35333400 none  G7089/F half link 415 orig.
57 111 35333400 $3.00 0000000 half link 415H
58 111 35333100 none  G7089/M master link 415 orig.
58 111 35333100 $3.00 0000000 master link 415H
60 111 48632270 none N157/D rear hub bare
61 xxx 48631080 $2.50 N118/1 n=36 spoke 174 x 2.5
62 111 35634140 $16.0 N157/C H119L rear axle M11-1 x 200
65 222 48610880 $0.00 N117 00 F & R rim 16″
66 111 71332225 none G7889/M107 chain #415 107L orig.
66 111 71332225 $25.0 G7889/M107 chain #415H 107L
68 101 71333800 $35.0 0000000 sprocket ∅39.5-62 x 45T
68 111 48633870 none N157/?? sprocket ∅39.5-62 x 46T
69 444 92701072 $1.20 G7885/W H124a sprocket nut M7 x 7
70 444 98107030 $1.00 G7885/K H124 sprocket bolt M7 x 18
71 111 46635000 $4.00 G7885/Z H122 sprocket lock plate
72 111 71634810 $0.00 G7885/U L rear spacer
73 111 48610281 $0.00 N156 = G7852 front wheel assy
74 111 71630225 none N157 00 rear wheel assy
75 111 48332180 $0.00 0000000 pedal chain 1/2 x 1/8″ ??L
76 404 48634590 $1.50 0000000 H148 inspect plug substitute
77 222 48634379 $3.00 0000000 H115 rear nut M11 x 4 hex24
78 111 92295706 $2.00 G7885/R H67P bag of 22 7/32″ balls
79 222 35614640 $16.0 G7885/S H69P rear cup ∅30-36.5
80 222 35614740 $9-$6 G7885/Q H68P rear dust cover
81 111 48333671 none N157 00 freewheel left-hand
82 444 45614800 $3.00 G7885/H H112 axle nut M11 x 10

2. Kick models with G2K-G or G2K-R engine

G2K engine: (Gentlemen Due Kick 49cc) is on 1970-76 Gentleman, UK models 1974-80? Motorella, 1978-80? G2 KS and G2 Elle. Eliminating the pedals and pedal chain simplified the frame design, and allowed the rear wheel to have a single sprocket and bigger wheel bearings (since they did not have to pass through the inside of a freewheel).

Here is a English language 1978 Benelli Service Manual (UK models 50-125cc) a PDF download for the mopeds below and others. Euro models have a Dansi 101662 magneto. Euro models with brake light have Dansi 101813. US models (all with brake light) have Dansi 101441 or 101813.

G2K G engine (long exhaust, Adler clutch, dome piston)

1. ’78 G2 Elle, 2. ’78 G2 KS

G2K R engine (short exhaust, Rimoldi clutch, flat top piston)

1,2. ’70 Benelli Gentleman, 3. ’76 Gentleman, 4. ’70’s Gentleman (in NZ) 5. ’78 Motorella

G2K partial parts list. For others see G2 parts list.

G G2 Elle, R Motorella, ENGINE PARTS .

G# GR 1975# 000 1980# 0 price 0 1970#
048 11 3570030799 71262500 $8.00 G 0000 kick rubber “Motobi”
098 11 9280080200 35717000 none  ‌B1348/2 spark plug NGK BR6ES
099 22 3591080799 96506026 $2.00 ‌UI7496 exhaust stud M6 x 26
100 11 2870460799 48120370 $6.00 ‌N30 exhaust gasket
063 01 7710060799 71060210 $65.0 G7346/C piston assy flat GOL 0504
063 10 0000000000 70060220 N/A    N257/C piston assy dome top use flat top
065 11 7120020799 48061670 N/A    G628/A connecting rod assy
112 11 2230140815 71064000 N/A G0000 crankshaft assy

Dansi magnetos with ∅82 id rotors, ∅94 od stators
IIN means Internal spark, Int. ground, No brake light
EIN means External spark, Int. ground, No brake light
M# GR 75# or 80# price Dansi#
070 00 0000000000 N/A ADP44 ∅110 ⇒ IIN ’70-75? Gentleman kick 60
070 01 4270220799 N/A 100833 ∅103 ⇒ EIN ’73-76? Motorella
070 10 0048712472 N/A 101662 ∅103 ⇒ EIN ’76-80? G2 Elle, Motorella

Benelli 4M 4MS 4M65

January 21, 2021

models (US in blue)	engine	bore	cc	comp	hp	tires
’68-69 Dynamo Compact	4M	40	49		1.5	3.50-8
’76 Sprint	4M	40	49		1.5	2.25-18
’65-68 Fireball	4MS	40	49	9.8	4.5	2.25-18
’65-66 Riverside 450-SS	4MS	40	49	9.8	4.5	2.25-18
’67-68 Fireball Trail	4MS	40	49	9.8	4.5	2.75-17?
’69 Dynamo Compact	4MS	40	49	9.8	4.5	3.50-8
’69 Super Mini	4MS	40	49	9.8	4.5	2.50-14?
’69-71 Dynamo Trail	4M65	44	59			3.00-10
’69-71 Dynamo Compact	4M65	44	59			3.00-10
’70-71 Woodsbike	4M65	44	59			3.00-10
’70-72 Cougar	4M65	44	59			2.75-17
‘71-73 Mini Enduro	4M65	44	59			2.75-14?
’72 Trail II, Woods II	4M65	44	59			3.00-10
’72-73 Dynamo II	4M65	44	59			3.00-10
‘74-75 Dynamo Trail	4M65	44	59			3.00-10
’76-77 Dynamo	4M65	44	59			3.00-10

How to tell if a Benelli Dynamo is 49 cc (4M or 4MS) or 59 cc (4M65). From left side photos, the carburetor is SHA14/12 or UA16-S on 49 cc and ME15BS on 59 cc. From disassembled engine parts, the case halves have part numbers in the casting inner side, or the piston size can be measured with a caliper.

1. US models with 4M or 4MS engine

49cc vertical cylinder 4-speed foot-shift, manual clutch.

4M engine: The 4M has a mild cylinder, with shorter and narrower ports, a 12mm ID intake, and a smaller 12mm Dellorto SHA 14/12 side-draft carburetor. It is limited to 1.5 horsepower to be operated in most countries or states without a drivers license. The 4M engine was on ’68-69 Benelli Dynamo Compact and ’76 Benelli Sprint. M means marce, Italian for “march”, or in the motorcycle industry “foot-shift”.

1. 4M engine with SHA 14-12 carb
2. ’68 Dynamo Compact, 4M engine
3. ’69 Dynamo Compact, 4M engine
4. ’76 Sprint (with pedals), 4M engine

4MS engine: The 4MS has a “sport” cylinder, with taller and wider ports, a 16mm ID intake, and a larger 16mm Dellorto UA16S down-draft carburetor. Horsepower 4.5 at 7800 rpm. This is the version shown in the parts illustration. The 4MS engine was on the ’65-68 Benelli Fireball, ’67-68 Fireball Trail, ’65-68 Riverside 450SS, and ’69 Dynamo Compact and Super Mini.

1. 4MS engine with UA16-S carb
2. ’66 Riverside 450SS, 4MS engine
3. ’69 Benelli Super Mini, 4MS engine
4. ’69 Benelli Dynamo Trail, 4MS engine

Benelli 4M and 4MS Engine Parts

00# 1980# 0 price 0 1970# 0 Engine Parts .
002 95000206 $0.20 ‌MU332 head washer ∅6
003 92602206 $0.30 ‌MU280 head & ex. nut M6
008 35717000 $4.00 ‌B1348/2 spark plug = NGK B6ES
009 00000000 none ‌G7007 0 cylinder stud M6 x ?
011 00000000 $12.0 ‌G7010 0 head gasket ∅41
013 00000000 none ‌G7011/2 base gasket
035 00000000 $7.50 MU2265 drive seal 28-38-7
084 00000000 $00.0 MU7865 L & R crank seal
085 90201416 none ‌G7345 0 L & R crank bearing 6004 C3
085 90201416 $8.00 G7345 0 crank bearing subst. 6004
087 70060400 none ‌G7346 0 piston bare dome top use #91
088 90272012 $1.50 ‌MU339 0 piston clip 12 mm
089 48060870 $10.0 ‌G7347 0 piston ring 40 x 1.5 GN
089 48060872 $22.0 G7347/2 piston ring 1os 40.2
089 48060874 none G7347/4 piston ring 2os 40.4
089 48060876 $10.0 G7347/6 piston ring 3os 40.6
090 00000000 $8.00 G7115 0 piston pin ∅12 x ?
091 70060220 none ‌G7346/C piston assy 40 dome, use flat top
091 71060210 $65.0 ‌N257/C piston assy 40 flat top GOL
091 71060310 none N257/C2 piston assy 1os 40.2 flat top
091 71060311 none N257/C4 piston assy 1os 40.4 flat top
091 71060312 none N257/C6 piston assy 1os 40.6 flat top
095 00000000 $00.0 G7018 0 piston pin 12 x ??
100 00000000 $12.0 ‌G7342 0 left crank seal 15-25-5
101 00000000 $75.0 G29 000 carb for 4M, SHA 14-12, 58 jet
104 00000000 $00.0 L419 00 washer
105 00000000 $00.0 MU324 0 screw
106 00000000 none G314 00 magneto assy Dansi ASL204NS
108 00000000 $1.30 ‌MU1147 stator screw M4 x 10-slot
109 00000000 $1.50 ‌UI7091 flywheel washer 9 x 13
110 00000000 none I9020 00 flywheel nut C2 M9-1.0 x 14 hex15
110 00000000 $7.00 I9020 00 substitute C8 M9-1.0 x 9 hex12
159 00000000 none G7920/3 carb for 4MS, Dellorto UA 16S
0# 1980# 0 price 0 1970# 0 Magneto Dansi ASL204NS
193 00000000 none G221/1 stator plate bare
194 00000000 none G221/2 ignition source coil
195 00000000 $2.50 ‌G221/3 cond. screw M4 x 8 small head
196 00000000 $26.0 G221/4 points 01.3236
197 00000000 none G221/5 points screw & clip set
198 00000000 $15.0 G221/6 condenser 07.0074 M17D
199 00000000 $1.50 G221/7 coil screw M4 x 25 slot
200 00000000 $0.50 ‌G221/8 coil lock washer 4
201 00000000 none G314/A lights source coil
202 00000000 none G221/10 flywheel Dansi ASL204NS
203 00000000 none G221/11 grease felt

Benelli Dynamo Frame Parts
A. ’68-69 Compact
B. ’69-71 Compact

Benelli Dynamo Compact ’68-71 Frame Parts

o# ab price 0 1970# 0 Frame Parts .
01 11 none G255/2 seat
08 10 none K43 00 gas tank ’68-69
09 10 none G173 00 gas cap M50-1.5-int. ’68-69
07 01 $30.0 ‌N226/2 gas cap ¼-turn-60-ex ’69-on
10 10 none L3223 0 gas cap seal ring
15 11 $20.0 G7186 0 fuel petcock A2 10×1-down
16 11 $2.00 L425 00 petcock seal ring C17
o# ab price 0 1970# 0 Domino Controls note 1
21 11 none G7782 00 L control 1-lever
22 10 none G7107/3 R control wrap type ’68-69
22 01 none G582/1 0 R control slide type ’69-on
23 10 none G7/2B 00 grip set ’68-69 original
23 00 $12.0 G7/2B 00 grip set Magura replica
24 11 25-18 G7107/3A D20a lever open no ball
24 00 23-15 G7107/3A D20 lever closed ball end
25 22 $4.00 G7107/3B D14 cable anchor pin
26 22 $7-$3 G7107/3C D8 pivot bolt M6 x 25
26 22 $7.00 G7107/3C D9 pivot tube 6-8 x 12
26 22 $2-$1 G7107/3C D7 pivot nut M6 flange
27 00 none ~~G7107/3D G24 adjuster A1b~~ (not used)
28 11 $0.00 G7108/1A D16? R clamp bolt M6x18 allen
28 11 $0.00 G7108/1A D17? L clamp bolt M6x20 allen
29 11 $4.00 G7108/1D D15 clamp lock tube
30 11 $2.00 G6/4 000 throttle cable pinch bolt P5a
31 11 none G7782/A left control housing
32 00 none ~~G7107/3E V29 adjuster A3a~~ (not used)

o# ab price 0 1970# 0 Cable Parts .
36 10 $10.0 K60 throttle cable thin black ’68-69
36 00 $10.0 K60 throttle cable thin grey ’69-on
37 10 $18.0 K62 F brake cable thick black ’68-69
37 01 none K62 F brake cable thick grey ’69-on
38 10 $18.0 K61 clutch cable thick black ’68-69
38 01 none K61 clutch cable thick grey ’69-on
39 66 $1.50 G364 cable step ferrule
40 11 $3.00 M277 clutch pinch bolt P20
62 11 none K30 stop plate note 2
83 10 none K27 brake pedal
85 11 $9.00 L3564 clevis clamp with 85,86
86 11 none UI3437 clevis pin
87 11 none MU305 cottor pin
88 10 $16.0 K63 R brake cable thick black ’68-69
88 01 none K63 R brake cable thick grey ’69-on

			throt.	lever	lever	throt.	brake	handlebar
#	years	engine	type	type	ends	cable	cable	type
a	’68-69	4M	wrap	open	plain	black	black	solid long
b	’69-71	4MS, 4M65	slide	open	plain	black	grey	folding
c	’72-74?	4M65	slide	closed	ball	black	grey	folding forward

Note 1. Early 1970’s Domino controls were on US models. ’68-69 had wrap-type throttle with a thread-less-bottomed hole made for no adjuster. ’69-on had slide-type throttle also with no adjuster. The brake and clutch cables went into thread-less-bottomed holes made for no adjusters. The parts catalog shows and lists the cable adjusters #27 G7107/3D and #32 G7107/3E, but they are not in any internet photos.

Note 2. The brake and clutch cables on US models are thick, with 2mm inner wire and 6mm conduit with 7mm end caps. The clutch cable K61, with 6mm OD conduit, passes through a 6mm hole in the stop plate K30. The step ferrule (cable end) G364 adapts the 6mm OD cable conduit to stop at the 6mm ID cable hole. The same G364 step ferrule is on the upper end of the clutch cable, and on the rear brake cable for the same reason, to adapt a 6mm conduit to stop at a 6mm hole.

Benelli Dynamo Compact ’68-69 Other Parts

0# 1980# 0 price 0 1970# 0 Other Parts .
01 00000000 none G213 0 tail light assy
02 00000000 none G213/2 tail light lens
03 00000000 $2.00 G213/3 tail light bulb 1154 6V 21/5w
04 00000000 $0.00 G213/1 lens screw
05 00000000 none K53 000 wiring harness
06 00000000 $23.0 G311/C multi switch CEV 8052 replica
06 00000000 $21.0 G311/C multi switch replica black
07 00000000 none G213/4 tail light housing
08 00000000 $0.25 MU432 lock washer 6
09 00000000 $0.30 G213/7 tail light nut M6
10 00000000 none M255 0 tail light mount
11 00000000 $0.00 MU235 mount bolt M6 x 12?
12 00000000 none K56 000 clamp
13 00000000 none I9025/2 rubber tube
15 00000000 $32.0 G333 0 horn 6VAC 18w black
17 00000000 $0.20 MU332 washer 6
18 00000000 none L3473 0 tail light wires rubber tube
34 00000000 none K45/A 0 wheel rim 8″
35 00000000 none K47 000 tire 3.50 – 8
36 00000000 none K48 000 tube 3.50 – 8
47 00000000 $25.0 G7503/1B brake shoe set (no springs)
48 00000000 $8.00 G7503/1C brake spring H64KS 51mm
49 00000000 none K45/E 0 front brake plate bare
51 00000000 $0.00 G127/I cam
57 00000000 none K46/B 0 rear brake plate bare
60 00000000 $0.00 K46/E 0 shock absorber ring
61 00000000 none G
62 00000000 none G
63 00000000 none G
64 00000000 none G
65 00000000 none SD453/27T sprocket
66 00000000 none G133/1A lock plate
67 00000000 none K46/G 0 outer left spacer
68 00000000 none I9246/A axle nut M12
69 00000000 none I9246/L axle washer
70 00000000 none L3814/3 chain adjuster
71 00000000 none K46/H 0 rear axle ∅12
72 00000000 none MU8042 sprocket bolt M7
73 00000000 none MU2511 sprocket nut M7 tall
74 00000000 none K45/G 0 front brake assy
75 00000000 none K46/I 00 rear brake assy
76 00000000 $0.00 G7089/11 chain
77 00000000 none G
78 00000000 none G
81 00000000 none G311 00 CEV “bullet” headlight assy
82 00000000 none G311/1 0 sealed beam #4667 6V 18w
82 00000000 none G311/1 0 replaceable bulb headlight .
83 00000000 none G
84 00000000 none G
85 00000000 none G
86 00000000 none K55 000 speedometer set
87 00000000 none G227/6 speedometer CEV ∅60 ∅2.7?
88 00000000 none K55/A 0 speedo cable CEV ∅2.7 thick wire
89 00000000 none K55/B 0 speedo driver CEV 7278
90 00000000 $1.50 G227/4 speedo bulb 6V 1.5w BA9s
00# 1980# 0 price 0 1970# 0 Carb Parts Dellorto SHA14/12
105 43934400 $5.00 DE6107 float chamber
106 46934700 $2.00 DE6123 float gasket
107 43934500 $4.00 DE3598 float screw M4-0.75 x 18
108 43933000 $18.0 DE6122 float white plastic 3.5 gr
109 43933100 $2.00 DE4560 hinge pin Ø2 x 16.5
110 43934800 $10.0 DE2838 float needle
111 00000000 $5.00 DE1486/58 jet #58
112 43938600 $4.00 DE6140 idle speed screw
113 43936300 $2.00 DE3606 idle screw spring
114 46938900 $5.00 DE6448 clamp sleeve 18 x 20
115 46938600 $2.00 DE6305 clamp screw M6
116 43937600 $2.50 DE6304 clamp nut, use M6 regular
117 43937500 $10.0 DE6103 throttle slide #1 used
118 43932200 $3.00 DE6111 top gasket
119 43935000 $16.0 DE6110/C top assy used
120 49938700 $5.00 DE1104/C cable adjuster A13
121 43932800 $2.00 DE3318 top screw M4-0.75 x 14
122 00000000 $3.00 DE6159 air filter gasket
123 00000000 $7.00 DE6114 choke plate-lever
124 00000000 $3.00 DE6105 choke spring
125 00000000 $3.00 DE5417 choke pivot bolt
126 43932500 $9.00 DE6117 air filter
127 70931020 $10.0 DE6183 air cover
128 70934220 $6.00 DE6235 air cover clip
129 00000000 $5.00 DE6109 fuel filter disk
130 00000000 $8.00 DE6106 inlet banjo metal
131 00000000 $1.50 DE3385 inlet seal washer 5 x 9
132 00000000 $5.00 DE4190 inlet screw M5-0.75 x 15

2. US models with 4M65 engine

59cc vertical cylinder 4-speed foot-shift, manual clutch.

4M65 engine: The advertised size is 65cc, but the actual size is 59.3cc. Bore and stroke were 44 x 39 mm. 22*22*3.14*39/1000 = 59.3. The Benelli 4M65 engine is on 1971-73 Mini Enduro, 1970-72 Cougar, 1969-71 Dynamo Compact, Dynamo Trail (Scrambler), Woodsbike, 1972-73 Compact II, Dynamo II, Woods II, 1974-75 Dynamo Trail, 1976-77 Dynamo. It has a larger piston and cylinder, larger intake, and a larger Dellorto ME15BS carburetor.

1. 4M65 engine with ME15-BS carb
2. ’70-72 Cougar, 4M65 engine
3. ’71-73 Mini Enduro, 4M65 engine
4. ’72 Trail II specs, 4M65 engine, late tank

1. ’69 Dynamo Trail, 4M65 engine, early tank
2. ’70 Dynamo Trail, 4M65 engine, early tank
3. ’74 Dynamo Trail, 4M65 engine, late tank

Benelli 4M65 Engine Parts

0# 1980# 0 price 0 1970# 0 Engine Parts .
010 00000000 none  ‌G78250 head small round
010 00000000 none  ‌G00000 head big square, Super Mini only
087 00000000 none  ‌G421 00 piston bare
089 00000000 $10.0 G591 00 piston ring Std 44.0 x 1.5 GN
091 00000000 none  ‌G421/C piston assy Std 44.0 x 17-12-18
099 00000000 $2.00 G7274 woodruff key #M81 2.0 x 3.7
106 00000000 none  ‌G421/C magneto Dansi ASL204NS
106 00000000 $1.30 ‌MU1147 stator screw M4 x 10-slot
109 00000000 $1.50 ‌UI7091 flywheel washer 9 x 13
110 00000000 none  ‌G7090 0 flywheel nut M9-1.0 special
110 00000000 $7.00 ‌G7090 0 substitute M9-1.0 x 9 hex12
110 00000000 $19.0 ‌P19x22 0flywheel puller tool M19/M22
111 00000000 none  ‌UI281 0 magneto wires grommet
112 00000000 none  ‌G7957 0 transmission cover
0# 1980# 0 price 0 1970# 0 Magneto Dansi ASL204NS
162 00000000 none  ‌G221/1 stator plate bare
163 00000000 none  ‌G221/2 ignition source coil
164 00000000 $2.50 ‌G221/3 cond. screw M4 x 8 small head
165 00000000 $26.0 G221/4 points 01.3236
166 00000000 none  ‌G221/5 points screw & clip set
167 00000000 $15.0 G221/6 condenser 07.0074 M17D
168 00000000 $1.50 G221/7 coil screw M4 x 25 slot
169 00000000 $0.50 ‌G221/8 coil lock washer 4
170 00000000 none ‌G314/A lights source coil
171 00000000 none  ‌G221/10 flywheel Dansi ASL204NS
172 00000000 none  ‌G221/11 grease felt
0# 1980# 0 price 0 1970# 0 Other Parts
173 00000000 none  ‌G242/11 gasket set
174 00000000 $0.00 G243/11 seal set
175 00000000 none  ‌G590 00 carburetor ME15-BS
176 00000000 $10.0 K60 throttle cable thin black ’68-69
176 00000000 $10.0 K60 throttle cable thin grey ’69-76
0# 1980# 0 price 0 1970# 0 Carb Parts Dellorto ME15-BS
177 00000000 none DE4167/18 float bowl
178 00000000 none DE4025/40 idle jet #40
179 00000000 none DE4045 00 float gasket
180 00000000 none DE4169 00 float top assy
181 00000000 none DE5011 00 float washer
182 00000000 none DE1308 00 float screw
183 00000000 none DE1432 00 gasket
184 00000000 none DE1435 00 filter
185 00000000 none DE5000 00 inlet
186 00000000 $1.50 DE3385 00 seal washer 5 x 9
187 00000000 none DE3770 00 inlet bolt M5-0.75
188 00000000 none DE1476 00 cable boot
189 49938700 $5.00 DE1104/C top adjuster w/nut A13 M6-0.75
190 43932800 $2.00 DE3318 00 top screw M4-0.75 x 14
191 00000000 none DE4064 00 throttle spring
192 00000000 none DE4024/05 choke slide
193 00000000 none DE4043 00 choke spring
194 00000000 none DE3917 00 carb top
195 00000000 none DE4023 00 choke rod
196 00000000 none DE3479 00 choke clip
197 00000000 none DE4018 00 nipple
198 00000000 none DE3322 00 ring
199 00000000 none DE4065/02 jet needle
200 00000000 none DE4019/50 throttle slide
201 00000000 none DE4477 00 clamp sleeve
202 00000000 none DE1721 00 mount clamp
203 00000000 none DE1111 00 mount screw
204 00000000 none DE4498/258 needle jet
205 00000000 none DE 4022 00 gasket
206 00000000 none DE4021 00 plug
207 43936300 $2.00 DE3606 00 idle screw spring
208 00000000 none DE3357 00 idle air screw
209 00000000 none DE1411 00 speed screw spring
210 00000000 none DE4626 00 idle speed screw
211 00000000 none DE3315/67 main jet #67
212 00000000 none DE4017 00 jet holder
213 00000000 none DE4027 00 air filter
214 00000000 none DE4026 00 air filter gasket
215 00000000 none DE4076 00 spacer
216 00000000 none DE4028 00 air cover
217 00000000 none DE4276 00 air cover screw
218 00000000 none DE3446 00 throttle slide pin

Benelli Dynamo Frame Parts
d. ’72-77 Dynamo with 4M65 engine
t. ’69-69 Dynamo Trail 4M or 4MS engine
t. ’70-75 Dynamo Trail (Scrambler) 4M65 engine
w. ’70-72 Woodsbike with 4M65 engine

This is the flat bottom gas tank with a different gas cap.

0# dtw price 0 1970# 0 Frame Parts .
01 111 none  ‌K142 00 luggage rack
05 111 none  ‌K185 00 seat
07 111 $30.0 ‌N226/2 gas cap qtr-turn 60 ext. wing
08 111 none  ‌K186 00 gas tank
19 111 $2.00 L425 00 petcock seal ring C17
20 111 $20.0 ‌N160 00 fuel petcock A2 10×1-down
62 111 none K30 000 stop plate
73 111 none K179 00 brake pedal

Benelli Dynamo Other Parts
d. ’72-77 Dynamo with 4M65 engine
t. ’69-69 Dynamo Trail 4M or 4MS engine
t. ’70-75 Dynamo Trail (Scrambler) 4M65 engine
w. ’70-72 Woodsbike with 4M65 engine

o# dtw price 0 1970# 0 Controls .
01 111 none G582/1 0 R control Domino 70’s slide type
02 222 none G7107/3A D20an lever open no ball ’69-71
02 222 25-18 G7107/3A D20a lever open no ball ’69-71
02 222 $18.0 G375/1A D20n lever with ball end ’72-77
02 222 23-15 G375/1A D20 lever with ball end ’72-77
03 111 $15.0 G7/2 000 D21 R grip Dom. ribbed 24 x 105
03 111 $12.0 G7/2 000 000 grip set Magura replica
04 111 $5.00 G582/C 0 D2 slide screw M4 dome end
05 111 $19.0 G582/B 0 D1 throttle slide .
06 111 $6.00 G582/D 0 D3 twist tube set screw .
07 111 $1.50 G375/L 0 D16 clamp bolt .
07 111 $4.00 G375/L 0 D15 clamp cone-tube .
08 110 none CB1164 0 BL (brake light) clamp-contact
09 110 none CB1139 0 BL rubber insulator
10 220 1- .50 2522 000 BL hex bolt M5 x 12
10 222 1- .50 2522 000 exhaust bolt M5 x 12
11 440 $0.20 MU7559 0 BL washer 5
12 220 $0.40 MU8284 0 BL nut M5
12 222 $0.40 MU8284 0 exhaust nut M5
13 666 $1.50 G364 00 cable step ferrule
14 222 $7-$3 G7107/3C D8 pivot bolt M6 x 25
14 222 $2-$1 G7107/3C D7 pivot nut M6 flange
15 222 $7.00 G7107/3C D9 pivot tube 6-8 x 12
16 110 $9.00 G582/A 0 D11 helper spring .
17 110 $18.0 K62 0000 F brake cable thick black ’68-69
17 111 none K62 0000 F brake cable thick grey ’69-76
18 110 none CB1161 0 BL anchor pin with post
19 110 none CB1186 0 BL rubber insulator
20 110 none CB1162 0 BL small clamp-contact
o# dtw price 0 1970# 0 Electrical .
21 110 none K173/A 0 headlight bezel CEV visor type
21 110 $20.0 K173/A 0 headlight bezel CEV plain type
22 110 none K173/B 0 sealed beam bulb 6V 18w #4667
22 110 none K173/B 0 replaceable bulb headlight 6V 21w
23 550 $2.50 I9247/1F headlight w-clip CEV
24 110 none G199/8 0 headlight housing bullet type
25 220 $0.20 MU332 0 headlight washer 6
25 444 $0.20 MU332 0 exhaust washer 6
26 220 $0.80 MU1476 HL hex bolt M6 x 16
27 220 none 4110/A 0 lens screw
28 110 none 4110/B 0 tail light lens
29 110 none G213/3B tail/brake bulb 6V 18/3w
29 110 $2.00 G213/3B tail/brake bulb 6V 21/5w
30 110 none CB1895 0 multi switch CEV 8052 original
30 110 $23.0 CB1895 0 multi switch CEV 8052 generic
30 001 none K155 000 kill switch Woodsbike
30 001 $11.0 K155 000 kill switch substitute
31 110 none K177 000 wiring harness
32 110 none G227/6 0 speedometer CEV 2.7 hole
33 110 $1.50 G227/4 0 speedo bulb #53 12V 2w BA9s
34 110 none K103 000 speedo cable CEV 2.5 ends
35 110 none K104 000 speedo driver CEV 2.7 hole
36 110 none K55 0000 speedometer set
37 110 $5.00 G225/2 0 terminal strip 4-row screw type
38 110 none G333 000 horn 6V 18w orig.
38 110 $32.0 G333 000 horn 6V 18w replica
39 110 none K173 000 headlight assy
40 110 none K175 000 tail light assy
o# dtw price 0 1970# 0 Controls .
41 111 none G583/1 0 L control 1-lever Domino 70’s
42 112 $4.00 G375/D 0 D14 L cable anchor pin .
43 111 $8.00 G375/H 0 D22 L grip Dom. ribbed 22 x 105
44 111 $1.50 2625/B 00D17 L clamp bolt M6x20 allen
45 000 none ~~G375/1B V29 adjuster A3a~~ (not used)
46 110 $18.0 K61 0000 clutch cable thick black ’68-69
46 111 none K61 0000 clutch cable thick grey ’69-76
o# dtw price 0 1970# 0 Exhaust Parts .
47 111 none K72 0000 front pipe
48 222 none G256 000 front shield mount
49 111 none G204/1 0 front heat shield
50 444 none MU324 0 hex bolt
51 111 none G7918/5 muffler clamp
52 111 none K58 0000 muffler
53 111 none G257 000 rear shield mount
54 111 none G204 000 rear heat shield
55 111 none MU614 0 muffler bolt
56 111 none MU187 0 muffler nut
o# dtw price 0 1970# 0 Cable Parts .
57 110 $16.0 K63 0000 R brake cable thick black ’68-69
57 111 none K63 0000 R brake cable thick grey ’69-76
59 111 none UI3437 0 clevis pin
60 111 $9.00 L3564 00 clevis clamp with 85,86
61 111 none MU305 0 cottor pin
63 111 $3.00 M277 00 clutch pinch bolt P20
o# dtw price 0 1970# 0 Wheel Parts .
64 222 none G127/I 0 cam shaft
65 222 none G127/L 0 cam washer
66 222 $5.00 G7885/B H59 brake lever
67 222 $0.60 MU280 0 cam nut M6 x 6
68 222 $5.00 G7885/C H60 pinch bolt
69 222 none G7503/1B brake shoe set
70 444 none G7503/1C brake shoe spring
71 444 none CS0046 0 dust cover
72 444 $0.00 L746 00 wheel bearing
101 200 none K94 000 tire 3.00 – 10 street type
101 022 none K85 000 tire 3.00 – 10 trail type
102 222 $0.00 K85 000 tube 3.00 – 10
108 111 none MU72 0 start cable oil ring

1. brake light switch, 2. wiring diagram

External Ignition Ground: The brake light switch is normally closed until the brake lever is pulled. Then the switch is open. This is opposite of what you would expect. On the Dansi ASL204NS magneto the green wire is an external ignition ground powering the brake light. It must always go to ground to have spark.

Benelli 3V 3VK 3VK-1978

January 21, 2021

1. Pedal models with 3V engine
Benelli 3V

2. Kick models with 3VK or 3VK-78 engine
Benelli 3VK, Magnum 3V, Export 3V
Riverside 350-S (US)

models (US in blue)	engine	bore	stroke	comp	hp	tires
’59-66? 3V	3V	40	39			2.25-19
’65-77? 3VK	3VK	40	39			2.25-16
’65-67 Riverside 350-S	3VK	40	39			2.25-16
’70-76? Export 3VK	3VK	40	39			2.25-16
’76-77? Magnum 3V	3VK	40	39			3.50-10
’78-80? Magnum 3V	3VK-78	40	39			3.50-10
’78-80 Export	3VK-78	40	39			2.25-16

Benelli models with 3V, 3VK, 3VK-1978 engines

49cc vertical cylinder 3-speed grip-shift, manual clutch.

1. 1959 Benelli 3V with 3V engine
2. ’72 Benelli 3VK with 3VK engine
3. ’73 Benelli Export 3VK
4. Benelli 3VK engine

Benelli 3VK engine parts

3V and 3VK partial parts list:

00# price 0 1980# 0000 1970# 00000 description specs
004 $0.30 ‌92.60.22.06 MU280 head & ex. nut M6
005 $0.20 ‌95.00.02.06 MU332 head washer ∅6
006 $4.00 ‌96.50.61.05 G7483 cylinder stud M6 x 105 (107 total)
007 N/A ‌70.02.24.00 G7825 head
008 $7.00 ‌48.02.20.70 G7010 head gasket ∅41
007 N/A ‌00.00.00.00 G7006/A cylinder (different from FA)
011 N/A ‌00.00.00.00 G310 intake pipe ∅18 at clamp (different from FA)
062 N/A 00.00.00.00 G7011 base gasket
095 70.06.04.00 G7346 piston bare dome top hi-comp use #183
096 $10.0 48.06.12.70 G7018 piston pin ∅12 x ?
097 $1.50 90.27.20.12 L339 piston pin clip ∅12
098 $10.0 ‌48.06.08.70 G7347 0 piston ring Std 40.0 x 1.5 GN
098 $22.0 48.06.08.72 G7347/2 piston ring 1os 40.2 x 1.5 GN
098 none   48.06.08.74 G7347/4 piston ring 2os 40.4 x 1.5 GN
098 $10.0 48.06.08.76 G7347/6 piston ring 3os 40.6 x 1.5 GN
106 N/A 70.71.24.00 G7094/4 magneto assy Dansi MSL105
106 N/A    00.00.00.00 G7094/2 magneto assy CEV 6097
106 N/A 70.71.16.20 G00000 magneto assy Dansi 100844 on 3VK NT (Export FA)
133 00.00.00.00 M56/2 points for MSL105 01.3240 photo
135 $15.0 00.00.00.00 M26/2 condenser for MSL105 M17D photo
150 $75.0 70.11.26.00 G29 carburetor Dellorto SHA 14/12L genuine, modern (not all metal)
150 $00.0 00.00.00.00 G29 with correct #58 jet, 18 clamp sleeve, air cover, screen and clip
157 $5.00 35.93.57.00 DE1486/58main jet 58
133  $00.0 00.00.00.00 G7094/2Dpoints for CEV 6097
183 70.06.02.20 G7346/C   piston assy Std 40.0 x 17-12-18 GOL
183 N/A    70.06.02.22 G7346/C2 piston assy 1os 40.2 x 17-12-18
183 N/A    70.06.02.24 G7346/C4 piston assy 2os 40.4 x 17-12-18
183 N/A 70.06.02.26 G7346/C6 piston assy 3os 40.6 x 17-12-18

’76 Benelli Magnum 3V ’78 Benelli Magnum 3V
3VK engine 00000000 3VK-1978 engine

’78 Benelli Magnum 3V
3VK-1978 engine

1978 Benelli Export
3VK-1978 engine

Benelli GM GK GK65

January 21, 2021

1. Pedal models with GM engine
’65-69 Gentlemen,
’69 Maverick-US, ’67 Automatic-US

2. Kick models with GK engine
’69 Buzzer-US

3. Kick models with GK65 engine
’69-71 Hornet-US, ’70-72 Buzzer-US

models (US in blue)	engine	bore	stroke	comp	hp	tires
’65-69 Gentlemen	GM	40	39			2.25-16
’67 Automatic	GM	40	39			2.25-16
’69 Maverick	GM	40	39			2.25-16
’67-69? Gentlemen	GK	40	39			2.25-16
’69 Buzzer	GK	40	39			3.50-5
’69 Hornet	GK	40	39			2.75-9
’70-73 Buzzer	GK65	44	39			3.50-5
’70-72 Buzzer Jr	GK65	44	39			3.50-5
’70-71 Hornet	GK65	44	39			2.75-9
’71-72 Hurricane	GK65	44	39			3.50-7

Pedal models with GM, GK engines 1965-73

49cc horizontal cylinder 1-speed, automatic clutch

1. Benelli GM engine, 2. ’67 Gentleman, 3. ’65 Gentleman

GM engine (Gentlemen Monomarcia 49cc) is on the 1965-69 Benelli Gentlemen (Italy model), father of the Benelli G2. It is also on the 1969 Benelli Maverick (US model), a front-gas-tank version of the Gentlemen. Notice the 1967 spelling of Gentlemen, not Gentleman. The Gentlemen spelling appears in several late 60’s official publications. 1970 official brochures said Gentleman. See Benelli’s with G2, G2K engines. Here we will use Gentlemen for 1960’s and Gentleman for 1970’s.

The GM engine has a Dansi MDP44 magneto and front-facing Dellorto SHA 14/9 carburetor. It does not have internal pedals. Instead both motor and pedal chains are on the left side, very unusual.

The Gentleman with pedals had a Domino left control with a start lever, instead of a left twist grip start control like the 1965-69 Wards Riverside had. It is visible in the photo. So it’s in bicycle mode all the time, until you pull the start lever.

GK (Gentlemen Kickstart 49cc) engines are on US-model mini-cycles. The kick models do not have pedals or a pedal chain. The GK and GK-65 engines have a two-piece transmission cover, different than a GM one-piece. They do not have pedals or a pedal chain.

USA mini-cycles with GK and GK65 engines have Dansi ADP244S magnetos and front-facing carburetors, Dellorto SHA 14/12.

Benelli GM parts

GM partial parts list:

00# price 0 1980# 0000 1970# 00000 description specs
001 $10.0 ‌ 70.09.30.10 G244/20 start cable for lever control 1L 52 x 57″
001 $00.0 ‌ 70.09.30.10 G244/20 146, 147, 148, 149, 150 not included
002 $00.0 00.00.00.00 G29/A carburetor SHA 14/12
050 N/A    00.00.00.00 N14 magneto assembly Dansi MDP44 82/110 x 94
059 $4.00 ‌96.50.61.05 G7483 cylinder stud M6 x 105
060 $0.20 ‌95.00.02.06 MU332 head washer ∅6
061 $0.30 ‌92.60.22.06 MU280 head & ex. nut M6
067 $0.00 00.00.00.00 G7019 piston bushing
076 70.06.04.00 G7346 piston bare dome top hi-comp use #165
077 $0.00 48.06.12.70 G7018 piston pin ∅12 x ?
079 $10.0 ‌48.06.08.70 G7347 0 piston ring Std 40.0 x 1.5 GN
079 $22.0 48.06.08.72 G7347/2 piston ring 1os 40.2 x 1.5 GN
079 none   48.06.08.74 G7347/4 piston ring 2os 40.4 x 1.5 GN
079 $10.0 48.06.08.76 G7347/6 piston ring 3os 40.6 x 1.5 GN
080 $9.00 ‌48.02.48.70 N23 base gasket
084 $12.0 ‌48.02.20.70 G7010 head gasket ∅41
086 $5.00 ‌00.00.00.00 N183 spark plug = NGK BR5ES
088 $2.00 00.00.00.00 UI7496 exhaust stud M6 x 26
090 $65.0 ‌70.06.02.20 G7346/C   piston assy Std 40.0 x 17-12-18 GOL
090 N/A    70.06.02.22 G7346/C2 piston assy 1os 40.2 x 17-12-18
090 N/A    70.06.02.24 G7346/C4 piston assy 2os 40.4 x 17-12-18
090 N/A    70.06.02.26 G7346/C6 piston assy 3os 40.6 x 17-12-18
092 $6.00 00.00.00.00 G7096 spark plug cap plastic
093 N/A    00.00.00.00 SD462/3 stator plate ∅94 for 01.3239 points
094 N/A    48.70.95.70 G221/11 lubricating felt
095 N/A 35.70.79.00 G221/3 points and cond. screw
096 48.70.86.70 G26/2 = G221/6 condenser M17T 07.0074 0.28 μf, ∅18 x 21 photo
097 N/A    00.00.00.00 N14B internal spark coil
098 00.00.00.00 SD462/2 points 01.3239 photo
099 $0.40 70.71.89.20 G221/8 thin lock washer ∅4 x 7 x 0.5
100 $1.20 35.71.57.50 G221/7 coil screw M4 x 25 slot
101 N/A    00.00.00.00 N14/C lights coil
102 N/A    00.00.00.00 N14/A flywheel Dansi MDP44 82 id x 110 od
146 $0.50 48.80.18.70 UI7191 start cable cap subst. for 1L F5C photo
147 $4.00 48.80.25.70 G10 start cable spring subst. 6.5-7.0 id x 60-75
148 $3.00 48.80.24.70 M277 start cable pinch bolt for 1L P20 photo
149 $3.00 70.62.69.20 G000 start lever adjuster for 1L A3a photo
150 $4.00 00.00.00.00 G000 Domino start lever anchor pin D14a

Benelli models with GK65 engines 1969-73

59cc horizontal cylinder 1-speed, automatic clutch

1. GK65 59cc (44 x 39), ’69-71 Hornet, ’70-72 Buzzer

GK65 engine: (Gentlemen Kickstart 59cc) engines are on 1970-73 US-model mini-cycles. The model names say “65” but the actual size was 59cc, not 65cc. The bore and stroke are 44 and 39 mm, so (44/2)*(44/2)*3.14*39/1000 = 59.27 cc. The GK and GK-65 engines have a two-piece transmission cover, different than a GM one-piece. They do not have pedals or a pedal chain.

These have Dansi ADP244S magnetos and front-facing carburetors, Dellorto SHA 14/12.

Benelli GK65 engine parts

GK65 partial parts list

00# price 1970# description specs
071 none G244/26 start cable
o1A none G244/27 start cable
072 none G10 start spring
073 $3.00 N277 start pinch bolt P20 photo
050 $0.30 MU280 head & ex nut M6
072 none N134 magneto complete Dansi ADP244S photo
B82 none G421 piston bare ∅44 use #165
083 $8.00 G424 piston pin ∅12 x ?
084 $1.00 MU339 piston clip ∅12
085 $10.0 G591 piston ring Std 44.0 x 1.5 GN
085 none   ‌G591/2 piston ring 1os 44.2 x 1.5 GN
085 none   ‌G591/4 piston ring 2os 44.4 x 1.5 GN
085 none   ‌G591/6 piston ring 3os 44.6 x 1.5 GN
105  none  ‌B1348/2 spark plug = NGK BR6ES
108 none   ‌G422 head gasket ∅45
110 $4.00 G7483 cylinder stud M6 x 105
111 $0.20 MU332 washer M6
112 none   ‌N316 base gasket
117 $2.00 UI7496 exhaust stud M6 x 26
121 $00.0 G29/A carburetor SHA 14/12
152 none   N134/A flywheel ∅82 ∅110 aluminum Dansi ADP244S
153 none   G314/A lighting source coil
154 none   G221/2 ignition source coil (with external ground wire that powers brake light)
155 $1.20 G221/7 coil screw M4 x 25 slot
156 $0.40 G221/8 thin lock washer  ∅4 x 7 x 0.5
157 none   SD401 screw set
158  $21.0 CS0004 points #01.3239 photo  (gap 0.015″)
159 $15.0 G221/6 condenser #07.0074 0.28 μf, ∅18 x 21 photo
160 $1.50 G221/3 points screw M4 x 8 small slot
161 none   SD426/3 stator plate bare ∅94 2+3 hole
165 none   ‌G421/C   piston assy Std 44.0 x 17-12-18
165 none   ‌G421/2C piston assy 1os 44.2 x 17-12-18
165 none   ‌G421/4C piston assy 2os 44.4 x 17-12-18
165 none   ‌G421/6C piston assy 3os 44.6 x 17-12-18

Benelli FA

January 21, 2021

1. Benelli models with FA engines ’57?-’76

models (US in blue)	engine	bore	stroke	comp	hp	tires
’57-70? FA	FA	40	39
’65-66 Riverside 150P	FA	40	39	7.9?	1.5	2.25-18
’66-67 Riverside 150D	FA	40	39	7.9?	1.5	2.25-18
’65-67 Riverside 250D	FA	40	39	7.9?	1.5	2.25-18
’74-75 Benelli 3FA	FA	40	39			2.25-16
’70-76? Export FA	FA	40	39			2.25-18

1. Benelli models with FA engines 1957?-1976

49cc vertical cylinder 1-speed automatic clutch

1. ’66 Riverside 150-D, 2. ’65 Riverside 250-D, 3. ’74 Benelli 3FA

The ’65-67 Wards Riverside 150P, D and 250D (US), the ’74-75 Benelli 3FA (US) and the ’76 Benelli Export FA had FA engines. The left grip was a twist grip that operated the starting clutch. Normally the bike is in pedal mode. Twist the left grip back to engage the motor for starting. Once started it is under automatic clutch control, engaged above 10mph and in neutral below about 5mph. The hand levers are hand brakes, left rear and right front. The controls are early Domino. Throttle is a wrap-around type.

Mopeds with manual starting clutches usually have an extra hand lever below the left handlebar, for starting. Instead of a start lever, Benelli has a start grip. You pedal the bike, then twist the left grip, to engage the engine. Then let go once the engine has started.

Date: The date of manufacture is not stated on the ID plate or anywhere else on the frame. On 250D models with original speedometers, there may be a date stamped in ink, on the bottom of the speedometer shell. Remove the speedometer to see it.

Here is a link to the 1965 Wards Riverside Service Manual

1. Wards Riverside owners and assembly manual
2. 1965 Wards 250-D identification plate

Wards Product Codes

FFA-61-14001A ’65-66 250-D 1.5hp red/wht long seat 2.25-18
FFA-61-14018A ’65-66 150-P 1.5hp red/wht solo seat 2.25-18
FFA-61-14001B ’66-67 250-D 1.5hp red/wht long seat 2.25-18
FFA-61-14018B ’66-67 150-D 1.5hp red/wht solo seat 2.25-18

Benelli FA Engine

FA engine (Frizone Automatico) engine had an upright slanted forward cylinder, not horizontal like the GM or G2 motor. It was rounded everywhere, not mostly square like the 1970’s motors. The pedals were part of the motor unit, not separate like on the G2.

1. ’60’s Benelli FA engine, 2. FA cylinder and piston, 3. 17x12x18 FA piston

The Benelli FA and M4 cylinders are the same as the Benelli M4S cylinder on the 50cc Fireball, except the porting. The Fireball cylinder has a 17mm (for the Dellorto UA16 carb) intake port at the flange, while the FA (and M4?) have a 10mm intake port hole (for a Dellorto 14/12 carb). The exhaust port is taller and wider on the Fireball. The transfer ports and intake port are also wider and maybe taller.

The 1960’s Benelli FA, M4 and M4S piston is the same as the 1970’s Benelli G and G2 piston. They are all 40.0mm bore, 39 stroke, and use the same rings 40 x 1.5 FG. The exhaust has a screw-on mount, with M34-1.5 male thread on the exhaust, female on the cylinder.

Parts List

Here is the 1965-67 Montgomery Ward Riverside Moped parts manual, condensed, colorized with prices, availability and specifications added. It is combined with a 1976 Benelli Export FA engine parts illustration and parts list. In ten years not much changed except the starting clutch and maybe something else.

On parts that have different sizes, the last digits of the 1976 part numbers say the size in millimeters, here colored in orange.

’66 Ward A. engine, B. 150D frame, 250D at bottom, C. start cables

’76 Export FA parts, A. engine, B. frame, C. other

66# 76# price 0’76 part# ’66 part# Engine Parts .
0A1 00  $0.00 00000000 MU1476 coil bolt M6 x ??
0A2 A73 $0.20 95000206 MU332 washer M6
0A3 A74 $0.30 92602206 MU280 nut M6-1.00
0A4 000 none. 00000000 I9161 ignition coil ’66 round can type
0A0 C72 $78.071716510 G000 ignition coil ’76 H79 E type Dansi photo
0A0 C72 $43.071716510 G000 same but good-used, both sold “as is”
0A5 000 $3.00 00000000 I9161/1 ground wire
0A6 119 $4.00 96506105 G7483 cylinder stud M6 x 105
0A7 A47 none 35717000 B1348/2 spark plug NGK ~~B6ES~~ now BR6ES
0A8 C86 $6.00 45717400 G6076 spark plug cap modern plastic
0A9 C73 $2.00823910070G25 spark plug wire 12″
A10 A43 none. 70115010 G7350 intake pipe ∅18 od
A11 A46 $0.00 70115500 G7015 intake gasket
A12 A45 $0.25 95021106 MU432 lock washer M6
A13 000 $3.00 00000000 G7496 intake stud M6 x 30
A00 A44 $0.70 98622320  00000 intake bolt M6 x 20 allen
A14 0A5 none. 48093970 G7947 starter lever-shaft ∅11
A15 0A7 none. 48087670 G7948 start lever inner
A16 0A8 $2.00 90271011 G7949 start shaft retaining ring external ∅11 x 1
A17 0A6 $0.00 90706107 G4 start shaft seal ring 10 id ?
A18 A19 none. 48081970 G7944/1 adjustment screw
A19 A17 none. 48082070 G7944/2 clutch shoe
A20 A18 none. 48083570 G7944/3 clutch shoe spring
A21 0A9 none. 48085570 G7946 clutch push rod ∅6 x 31
A22 0A0 none. 00000000 G7945 thrust cap
A23 A15 $1.50 90271015 MU3813 retaining ring external ∅15
A24 A20 $1.50 90271010 MU8153 shoe retaining ring external ∅10
A25 000 none. 00000000 G7944/5 washer M10
A26 A12 none. 48082670 G7944/6 starter clutch plate
A27 A16 $0.00 48081670 G5 washer 16 id?
A00 A11 $6.00 48023270 G418 retaining ring ∅95 x 2.0
A28 A21 none. 69084600 G7944/7 clutch drum with gear
A29 A48 none. 70022400 G7825 cylinder head
A30 A49 $12.0 48022070 G7010 head gasket
A31 A50 none. 70020310 G7438 cylinder
A32 A51 $0.00 70020800 G7011/1 base gasket
A33 A33 $5.00 90272042 MU7062 retaining ring internal ∅42 x 1.7
A34 A34 $10.0 90201020 MU7056 right drive shaft bearing 6302 15-42-13
A35 A35 none. 70213610 G7987 secondary gear shaft
A36 A29 $0.00 91600337 MU3817 clutch woodruff key
A37 A37 none. 70214510 G7774 secondary shaft gear
A38 A38 $10.0 90201120 MU3061 left drive shaft bearing 6302Z 15-42-13
A39 A39 $7.50 90402838 MU2265 drive seal 28-38-7
A40 A40 none. 70330510 G7340 drive sprocket
A41 A41 $0.00 70219300 G7344 sprocket nut
A42 A25 $0.00 48219370 L837 gear shaft nut
A43 A26 none. 70215810 G9 large primary gear
A44 A34 $10.0 92201020 MU7038 right gear shaft bearing 6003 17-35-10
A45 A35 none. 70213610 G7988 gear shaft
A46 A37 none. 70214510 G7039 small primary gear
A47 A38 $7.00 92201120 L746 left gear shaft bearing 6201 12-32-10
A48 A32 none. 70014210 G7777 left case plug
A49 A60 $1.20 98620345 M79 clutch cover screw M6 x 45 allen black
A50 A59 $0.80 98620325 MU1414/1 mag. cover screw M6 x 25 allen black
A51 A61 none. 70001610 G1 clutch cover
A52 A64 none. 70004910 G7092/1 dip stick
A53 A63 $0.00 70083810 G8 bushing with lip
A54 A70 $0.00 35002000 UI7080 dowel tube ∅6 ∅8? x 20?
A55 A59 $0.80 98620325 MU1224 case screw M6 x 25 allen black
A56 A67 none. 48004671 L492 breather
A57 A68 $0.00 90714080 L493 seal washer
A58 A69 none. 70001000 G7861 right case half
A59 A77 none. 90401927 MU7778 right crank seal 19-27-6
A60 A78 $0.00 90201416 G7365 L & R crank bearing 6004 C3 20-42-12
A61 A82 none. 70064410 G7943 right crank half
A62 A52 $10.0 48060870 G7347 piston ring 40.0 x 1.5 GN
A62 A00 $22.0 48060872 G7347/2 piston ring 1os 40.2 x 1.5 GN
A62 A00 none   48060874 G7347/4 piston ring 2os 40.4 x 1.5 GN
A62 A00 $10.0 48060876 G7347/6 piston ring 3os 40.6 x 1.5 GN
A63 A53 $65.0 70060400 G7346/C piston assy subst.
A64 A56 $1.50 90272012 L339 piston clip ∅12
A65 A00 none. 00000000 G7116 connecting rod bare, for bushing
A00 A57 none. 48061670 G0000 connecting rod bare, for bearing
A66 A00 $0.00 00000000 G7019 piston pin bushing ∅12 ∅14?
A66 A54 $0.00 95252012 00000 piston pin bearing ∅12 ∅15?
A67 A55 $10.0 48061270 G7018 piston pin ∅12
A68 000 none. 00000000 MU7112 rod bearing rollers
A69 000 none. 00000000 G7111 rod bearing cage
A00 A58 none. 92252012 00000 rod bearing assembled
A70 A83 none. 70065000 G7115 crank pin
A71 A84 none. 70064300 G7119 left crank half
A72 A81 $2.00 ‌91600238 G7274 flywheel woodruff key M81 2.0 x 3.7
A73 A85 none. 90401525 G7342 left crank seal 15-25-5
A74 A88 $0.00 91551070 UI281 grommet
A75 A87 none. 70000710 G7862/2 left case half
A76 000 $0.70 00000000 MU7084 lock washer M4 toothed
A77 A89 $1.30 98200410 MU1147 stator screw M4 x 10 slot
A78 000 none. 00000000 G221 magneto Dansi ASL205NS ’65-67 Ward
A78 000 none. 00000000 G7094 magneto Dansi MSL105 ’65-73? FA
A00 A90 none. 70712400 G000 magneto Dansi 100844 ’73-80? FA
A79 A91 $1.80 95101275 UI7091 flywheel washer ∅9 ∅17 inner teeth
A80 A92 $0.00 92750073 I9020 flywheel nut M8-1.0 x ?
A81 A93 none. 70000210 G7767 magneto cover
A82 000 none. 00000000 M93 MW name plate
A83 000 none. 00000000 B1219 name plate rivet
A84 A98 none. 70120800 G7840 exhaust header pipe
A85 A96 $0.00 70120300 G7009 exhaust seal ring ∅30? od
A86 A97 none. 70120200 G7763 exhaust nut M34-1.50
A87 A99 none 70126900 G7841/1 muffler clamp
66# 76# price ’76 part# ’66 part# description specs
A88 100 none. 70123000 G7841 muffler 32 id rear
A89 000 $2.00 00000000 MU614C muffler bolt w/nut M8 x 15
A90 000 $33.0 00000000 G7918/2 baffle 31.8 x 300 (Tomos substitute)
A91 000 none. 00000000 G7918/2 baffle screw
A92 106 $2.50 91770092 G7085 pedal pin ∅9.0
A93 000 $22.0 00000000 G7087/C pedal set replacement photo
A94 000 $35.0 00000000 G7923/C pedal crank set 502 replacement
A94 105 none 702615.0 G0000 right pedal crank 502R rep. (needs high offset)
A94 117 $20.0 70261511 G0000 left pedal crank 502L replacement
A95 000 none. 96506080 G105 case stud M6 x 80 use bolt
A00 A71 $1.20 98620370 G0000 case bolt M6 x 70 allen
A96 000 none. 96506065 G7013 case stud M6 x 65 use bolt
A00 A72 $1.20 98620355 G0000 case bolt M6 x 55 allen
A97 A70 none. 35002000 G7356 spacer ∅6 x 20?
A98 000 none. 00000000 MU7075 bushing circlip ∅20? external
A00 108 $1.50 90271116 00000 pedal shaft circlip ∅16 external
A99 000 none. 00000000 G7110 kick-starter right bushing with clip groove
100 107 none. 90401625 MU3796 pedal shaft seal 16-25-5
101 110 none. 70266700 G7055 pedal shaft inner spacer ∅17
102 109 $0.00 70267400 G7354 pedal shaft washer
103 112 none. 70266610 G368 pedal shaft gear
104 113 none. 70266510 G7358 engage dog
105 114 none. 70265200 G7072 engage dog spring
106 115 none. 70265311 G7348 pedal shaft
107 A36 $0.00 70017600 G7138 case stud M6 x ??
108 000 none. 00000000 G7370 pedal shaft bushing
109 A79 $0.00 90714062 L417 drain plug seal washer
110 A80 $0.00 98054310 MU234 drain plug
111 000 none. 00000000 G221/2 ignition source coil (ext. ground)
111 000 none. 00000000 G0000 internal spark coil for MSL105
000 157 none. 70715120 G0000 ignition source coil for 100844
112 156 $15.0 48708670 G221/6 condenser #07.0074 photo
113 164 $1.50 35707900 G221/3 points screw M4 x 8 small slot
114 000 none. 00000000 G221/1 stator plate bare ∅94 2+3 hole
000 155 none. 70702220 G0000 stator plate bare ∅94 2+3 hole for 100844
115 000 none. 00000000 G221/4 points #01.3236 photo (gap 0.015″)
000 159 $16.0 70708820 G0000 points #M14 for 100844
116 000 none. 00000000 G221/10 flywheel Dansi ASL205NS photo
000 162 none. 70711620 GG0000 flywheel Dansi 100844  photo
117 000 none. 00000000 G221/9 lighting coil 6V 28W
000 158 none. 70715020 G0000 lighting coil for 100844
118 163 $0.40 70718920 G221/8 thin lock washer ∅4 x 7 x 0.5
119 000 $1.20 35715750 G221/7 coil screw M4 x 25 slot
000 161 $0.00 35715500 00000 coil screw M4 x ?? slot
120 164 none. 48715770 G221/5 screw set
121 160 none. 48709570 G221/11 lubricating wick (felt)
122 100 $65.0 70060220 G7346/C piston complete 40 x 17-12-18 GOL
122 100 none. 70060222 G7346/C2 piston complete 1st o.s 40.2 x 17-12-18
122 100 none. 70060224 G7346/C4 piston complete 2nd o.s 40.4 x 17-12-18
122 100 none. 70060226 G7346/C6 piston complete 3rd o.s 40.6 x 17-12-18
123 000 none. 00000000 G7116/C connecting rod assy for bushing
000 154 none. 70064010 G00000 connecting rod assy for bearing
124 A42 $75.0 70112600 G29 carb Dellorto SHA 14/12
124 000 $00.0 00000000 G29 w/#58 jet, 18 sleeve
125 146 $5.00 49938700 DE1104/C cable adjuster w/nut A13
126 145 $2.00 43932800 DE3318 top screw M4-0.75 x 14
127 135 $16.0 43935000 DE6110/C carb top assy used
128 142 $10.0 43937500 DE6108 throttle slide #1 used
129 136 $3.00 43932200 DE6111 top gasket
130 140 $2.00 43936300 DE3606 idle screw spring
131 141 $4.00 43938600 DE6140 idle speed screw
132 126 $2.00 46938600 DE6305 carb clamp screw M6
133 127 $2.50 43937600 DE6304 clamp screw nut M6
134 000 $0.00 00000000 DE3724 intake pipe restrictor ∅12-to-10 ?
135 134 $5.00 46938900 DE6448 clamp sleeve ∅20-18
136 123 $2.00 46934700 DE6123 float gasket
137 122 $5.00 43934400 DE6107 float bowl metal used
138 121 $4.00 43934500 DE3598 float bowl screw M4-0.75 x 18
139 133 $5.00 35935700 DE1486/58 main jet 58
140 125 $2.00 43933100 DE4560 float hinge pin Ø2 x 16.5
141 124 $18.0 43933000 DE6122 float white plastic 3.5 gr
142 132 $10.0 43934800 DE2838 float needle valve
143 131 $5.00 00000000 DE6109 fuel filter disk
144 130 $8.00 00000000 DE6106 inlet banjo metal angled
144 130 $7.00 00000000 DE9249 inlet banjo plastic angled
145 129 $1.50 00000000 DE3385 seal washer 5 x 9
146 128 $5.00 00000000 DE4190 inlet screw M5-0.75 x 15
147 148 $10.0 70931020 DE6183 air cover #53051a
147 148 $17.0 00000000 DE0000 air cover set #53051 3-piece
148 147 $9.00 43932500 DE6117 air filter metal #53051c
149 144 $3.00 00000000 DE6159 air filter gasket
150 139 $3.00 00000000 DE5417 choke pivot screw
151 138 $3.00 00000000 DE6105 choke spring
152 137 $7.00 00000000 DE6114 choke plate-lever medium
153 149 $6.00 70934220 DE6235 air cover clip #53051b
154 A76 $0.80 92602208 MU187 nut M8
155 A75 none. 96508098 H8256 case stud M8 x 98
156 A86 none. 70000900 G7830 case gasket
157 A65 none. 70000600 G7835 clutch gasket
158 A24 none. 70070310 G3 clutch drum bushing
159 000 none. 00000000 G244/3 start cable for twist control 2T 52 x ?? use 1T
000 0A1 none. 00000000 G0000 start cable for lever control 2L 52 x ?? use 1L
159 000 $12.0 00000000 G0000 start cable for twist control 1T 52 x 57″
000 0A1 $10.0 70093010 G244/20 start cable for lever control 1L 52 x 57″
000 C41 $3.00 70626920 G7/4 00 adjuster for 1T,1L start cable A3a see below 41
00 C35a $4.50 00000000 Gooo cable anchor pin D14a substitute image see 35a
000 0A2 $3.00 48802470 M277 pinch bolt for 1T,1L start cable P20 photo
000 0A4 $0.50 48801870 UI7191 stop cap for 1T,1L start cable F5C photo
160 0A3 $4.00 48802570 G10 oo start cable spring subst. 6.5-7.0 id x 60-75
161 000 none. 00000000 G7944/C clutch complete ’66
000 165 none. 70080010 000000 clutch complete ’76
162 000 none. 00000000 G79 crankshaft with piston pin bushing
100 152 none. 70064010 000 crankshaft with piston pin bearing
163 150 none. 70999020 G242/1 gasket set
164 151 none. 69999501 G243/1 seal set 5-piece
164 151 none. 69999501 G243/1 19-27-6, 15-25-5, 28-38-7, 16-25-5, 16-25-5
165 000 $0.00 00000000 G29/1 throttle cable 2-ended (for wrap-around throttle)
000 120 $0.00 35117540 00000 throttle cable 1-ended (for slide-type throttle)
166 B32 $1.00823945080G7187/3 fuel hose 12″ clear

66# 76# price 0’76 part# ’66 part# Non-Engine Parts .
B29 B00 $0.00 00000000 G173 gas cap ext. thread w/cup
000 B29 $0.00 71103900 0000 gas cap external thread
B30 B00 $0.00 00000000 L3223 gas cap seal ring
B33 B31 $20.0 71105400 G7186 fuel petcock A2
B58 C12 $0.00 71625410 G244 front brake cable
B59 C84 $0.00 70679310 G244/6 rear brake cable
107 C50 $0.30 92602206 G7885/A nut m6
108 C51 $5.00 35635040 G7885/B H59 lever
109 C49 $5.00 35626050 G7885/C H60 pinch bolt
110 C52 $9.00 69622500 G7885/D H63 cam shaft
111 C54 $25.0 45620500 G7885/E H64 brake shoe set
112 C53 $2.50 69638102 G7885/F H64s brake spring
113 C71 $0.00 69633302 G7885/G H00 rear axle M11-1.00 x 175?
114 C42 $3.00 45614800 G7885/H H112 axle nut M11 x 10
115 C43 $1.50 45615600 G7885/I H113 axle washer
116 C63 $0.00 71336300 L3814/3 H00 chain adjuster
117 C44 $4.00 49614300 G7885/L H56 lock nut M11 x 6
118 C64 $0.00 71634010 G7885/M H00 R rear spacer
119 C65 $0.00 48635290 G7885/N H00 rear brake plate
120 C48 $7 - 4 35626900 G7885/O H53 cable adjuster
121 C55 $13.0 45615000 G7885/P H66 bearing cone (11mm)
122 C56 $6.00 35614740 G7885/Q H68 dust cover
123 C57 $2.00 92295706 G7885/R H67 bag of 20 1/4″ balls
124 C58 $7.50 35614640 G7885/S H69 bearing cup ∅32-36.5
125 C00 none 00000000 G7885/T rear hub bare no lip
000 C69 $0.00 71632210 0000000 rear hub bare 39.5 lip
126 C81 $0.00 71634810 G7885/U L rear spacer
127 C75 $0.00 69332222 G7089/8 chain 1/2 x 3/16″ Italian
128 C67 $0.00 35333100 G7089/M master link
129 C66 $0.00 35333400 G7089/F half link (dummy link)
130 C00 none 00000000 G7885/V sprocket 31T ∅36.5 x 62
000 C77 $0.00 69333821 0000000 sprocket 31T ∅39.5 x 62
131 C80 $4.00 46635000 G7885/Z H122 sprocket lock plate
132 C79 $1.00 98107030 G7885/K sprocket bolt M7 x 18
133 C78 $1.20 92701072 G7885/W sprocket nut M7 x 7
134 C70 $0.00 48631080 G7278 F & R spoke w/nut 36H 2x
135 C74 $0.00 48610880 G7630 F & R rim 18″
138 C47 $0.00 48620290 G7852/B front brake plate
139 C59 $0.00 49612200 G7852/C front hub bare
140 C61 $0.00 69614101 G7852/D H52? front axle
141 C62 $0.00 71615610 G7852/E L front spacer
145 C00 $0.00 00000000 G7852 front hub assy
146 C00 $0.00 00000000 G7885/1 rear hub assy
147 C00 none 00000000 G7 L control Domino twist type
000 C33 none 71603200 00 L control Domino 2-lever
148 C00 none 00000000 G6 R control Domino wrap type
000 0C1 none 71603300 00 R control Domino slide type
150 C00 $0.00 00000000 G7625 rim band
151 C86 $11.0 00000000 G7852 tube 2.25-18
152 C87 $46.0 00000000 G7852 tire 2.25-18 Mitas
153 C00 $0.00 00000000 G7852/A front wheel
154 C00 $0.00 00000000 G7885/AA rear wheel

Minarelli G1 and G1R

January 19, 2021

Minarelli G1

Minarelli G1-KS

Minarelli G1R

Minarelli G1R-KS

G1 and G1R have a 1-speed automatic with pedals, and same bottom-end parts as V1P.

G1-KS and G1R-KS have a 1-speed auto, kick start, and same bottom-end parts as V1P-KS.

1. 1972-85? Minarelli G1, G1-KS

Minarelli G1 and G1-KS (1972-85?)
figure Minarelli# qty MMI# price description
00015 15.0005.9 1 5640 none carburetor Dellorto SHA 14/9 jet #47
00015 15.0016.9 1 5650 $75.0 carburetor Dellorto SHA14/12 jet #52
00015 15.0016.9 1 0000 $00.0 ∅18 sleeve, no air cover, no cable pipe
00019 19.0304.0 1 0000 none cylinder S40 all-iron, M28 ex. thread
00031 31.0010.6 1 0000 $12.0 air cover F27 large sloping
00031 31.0005.6 1 0000 none air cover 10236 cylindrical
00062 71.0410.0 1 4540 none piston kit 38.8 rings 1.5
00062 71.0410.0 1 4540 $60.0 piston kit 38.8 GOL 0034
00062 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
00062 71.0460.7 1 4560 none piston kit Ø39.2 (2nd oversize)
00062 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
00077 77.0152.0 1 0000 none head (testa) SPORT
00082 82.0002.9 1 0000 none magneto Bosch 0212.005.027 ∅80 Ο♦♦
00111 11.0132.9 1 W8A $5.00 spark plug W145T1=W8A=BR5HS
00112 11.0203.0 1 5520 $7.00 spark plug cap for ∅5 wire
00212 21.0007.7 1 0000 none clutch cover metal natural
00212 21.0209.7 1 5262 none clutch cover metal black
00214 21.0352.0 1 0000 none magneto cover grey
00214 21.0353.0 1 0000 none magneto cover black
00381 38.0010.0 1 4465 none late cone crank G1,V1P M10-1.25 LH
00000 00.0000.0 1 4465 none rod Ø15.00 x 14 for needle bearing
00582 58.0220.0 1 4800 $12.0 9 tooth sprocket (1hp, 20mph)
00582 58.0221.0 1 4810 $19.0 10 tooth sprocket (25 or 30mph)
00582 58.0222.0 1 4820 $15.0 11 tooth sprocket (2hp, 30mph)
00681 68.0115.0 2 4640 $10.0 piston ring (each) 38.8 x 1.5 GN
05113 51.0301.9 1 4475 $15.0 piston bearing Ø12 Ø15.00 x 15
05320 53.0302.0 1 0000 none base gasket ∅44 40×40
49005 49.0018.0 1 5880 $4.00 air cover clamp with screw
49046 49.0326.0 1 6275 $1.00 cone-clutch lock nut 10-1.25×6 LH
49015 49.0125.8 1 4730 $2.00 key 3.0 x 3.6 x 9.5 M85 for Bosch
49040 49.0312.0 1 4750 $7.00 flywheel nut (dado) M10-1.25 x 14 hex 15
49084 49.0509.0 1 0000 $3.50 cylinder stud M6 x 109 (110)

Magneto Parts for Bosch 0212.005.027 ∅80 2-wire, int. spark
00821 82.0001.6 M31 1 $15.0 points M31 with eyelet wire
00823 82.0130.6 M32 1 $15.0 condenser M32 with screw post
00828 82.0014.6 0000 1 none stator assy Bosch
00826 82.0202.6 0000 1 none flywheel ⇒ Bosch

Minarelli G1-KS on ’80-82? Italjet M5C, ’82-84? Italjet M5D

2. 1979-85? Minarelli G1R, G1R-KS

Minarelli G1R and G1R-KS (1979-85?)
figure Minarelli# qty MMI# price description
00015 15.0015.9 1 5650 $75.0 carburetor Dellorto SHA14/12 jet #52
00015 15.0015.9 1 0000 $00.0 ∅18 sleeve, no air cover, no cable pipe
00019 19.0046.0 1 0000 none cylinder sleeved alum. 38.8 S40 Radiale
00031 31.0010.6 1 0000 $12.0 air cover F27 large sloping
00062 71.0419.0 1 0000 none piston kit 38.8 rings L2.0+1.5
00077 77.0172.0 1 0000 none head 38.8 grey Radiale
00077 77.0421.0 1 0000 none head 38.8 black Radiale
00082 82.0029.9 1 0000 none magneto Ducati 31.03.73
00381 38.0012.0 1 0000 none crankshaft (imbiellaggio)
00681 68.0115.0 1 4640 $10.0 lower ring 38.8 x 1.5 GN
00682 68.0116.0 1 0000 none upper L-ring 38.8 x L2.0
05320 53.0306.0 1 0000 none base gasket ∅47 48×48
49084 49.0513.0 4 0000 $3.50 cylinder stud 7 x 118.5 (120)

Magneto Parts for Ducati 31.03.73 ∅80 ⇒ 2-wire, ext. spark
figure Minarelli# qty MMI# price description
00821 82.0011.6 1 M18 $00.0 points M18 ??
00823 82.0134.6 1 M17T $00.0 condenser M17T ?? (∅17.9) use M17

Minarelli G1R-KS on ’80-82 Italjet JC5C, ’82-84 Italjet JC5D

Minarelli V2 and C2

January 19, 2021

Minarelli V2 and C2 have a variable-pulley automatic transmission. V2 has many parts in common with V1. C2 has many parts in common with V1P. 1970’s and 80’s V1/V2/C2 have a few parts in common with the late 1950’s Minarelli P1, such as the cast iron cylinder.

1. Minarelli V2

2. Minarelli C2

1. 1977-80? Minarelli V2

This V2 parts list is for the version sold in Italy.

Minarelli V2 (1977-80?)
figure Minarelli# qty MMI# price description
00 15 15.0016.9 1 0000 none carb SHA14/12 jet 52 use 15.0024.9
00 15 15.0024.9 1 5650 $75.0 carb SHA14/12 jet 52, US 2.0 hp
00 15 15.0000.6 1 0000 $0.00 ∅18 sleeve, no air cover, no cable pipe
15105 15.0360.6 1 6360 $5.00 6109 fuel filter
15130 15.0410.6 1 6380 $5.00 1486 main jet #52
15170 15.0490.6 1 6430 $2.00 6123 float gasket
15255 15.0601.6 1 6530 $7.00 9249 inlet banjo black plastic angled out
15300 15.0701.6 1 6550 $10.0 2838 float needle
15000 15.0000.6 1 0000 $0.00 for full list see Carb/Dellorto/SHA14
00019 19.0311.0 1 5480 none cylinder all-iron, US 2.0 hp

00031 31.0013.7 1 5660 $32.0 air cover bare S1 Minarelli grey
00031 31.0025.7 5660M $15.0 air cover bare S1 Minarelli black
0 31/1 31.0018.7 1 0000 none air cover bare S3 F44 grey
0 31/1 31.0024.7 1 6670 $11.0 air cover bare S3 F44 #8603 black
0 31/2 31.0021.7 1 6660 none air cover bare S33 grey use F44
0 31/2 31.0026.7 1 0000 none air cover bare S33 #8602 blk. use F44
0 31/3 31.0023.7 1 5660 $25.0 air cover-clamp S4 Min. grey used
00062 71.0409.0 1 0000 none superseded use 71.0410.0
00062 71.0410.0 1 4540 none piston kit 38.8 ball top 1.5 rings
00062 71.0410.0 1 4540 $60.0 piston kit 38.8 GOL 0034
00062 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
00062 71.0460.7 1 4560 none piston kit Ø39.2 (2nd oversize)
00062 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
00077 77.0124.0 1 5500 $39.0 head
00080 80.0103.0 1 5410 $40.0 fan early ’69-80 V1
00 82 82.0002.9 1 0000 none Bosch 0212.005.027 ∅80 wires-Ο♦♦♦
00821 82.0001.6 1 M31 $15.0 points = Bosch 2207 013 005 w/wire
00823 82.0130.6 1 M32 $15.0 condenser = Bosch 2207 330 050
00 82 82.0004.9 1 0000 none CEV 6931 magneto ∅80 wires-Ο♦♦♦
00 82 82.0033.9 1 5360 $280 CEV 6932 magneto ∅80 wires-Ο♦♦♦ US
00821 82.0004.6 1 M18 $18.0 points equal to CEV 04221
00823 82.0131.6 1 M17 $13.0 condenser equal to CEV 07365
00111 11.0101.9 1 0000 none spark plug WK175T1 use BR6HS
00111 11.0133.9 1 5510 $5.00 spark plug W175T1=W7A=BR6HS
00112 11.0202.0 1 5520 $6.00 spark plug cap for ∅7 wire
00211 21.0111.0 1 0000 none fan cover metal black
00212 21.0234.7 1 0000 none clutch cover metal black
00218 21.0552.0 1 5390 none fan base metal 3-bolt for metal cover
00381 38.0004.0 1 0000 none crankshaft
00382 38.0061.7 1 5560 $35.0 connecting rod assy with bushing
00582 58.0205.0 1 0000 none 14 tooth sprocket
00606 60.0181.0 1 5585 36-25 Ø18×12 front intake 14-12-12 (2.0hp)
00681 68.0115.0 2 4640 $10.0 piston ring (each) 38.8 x 1.5 GN
05320 53.0304.0 1 5460 $3.50 cylinder base gasket
05372 53.0502.9 4 4790 $6.00 pedal+variator seal 15 x 24 x 5
05374 53.0504.9 1 0000 $8.50 pulley outer seal 16 x 24 x 5
05376 53.0506.9 2 4710 none crankshaft seal 17 x 35 x 8
05379 53.0510.9 1 0000 none pulley inner seal 30 x 47 x 7
49005 49.0018.0 1 5880 $4.00 air cover clamp ∅60 replica with screw
49084 49.0510.0 4 5530 $4.50 cylinder stud M6 x 136

49244 49.0861.9 3 0000 $0.70 fan base bolt M6x20 TCCE
49300 49.0935.9 4 5420 $1.20 fan screw xxxxx M4x10 TGS (threads 5-8mm)
49245 49.0862.9 3 5450 $0.80 metal fan cover M6x30 TCCE

1980 Testi Cricket V2 Minarelli V2 variator eng

1980 Testi Cricket V2
Minarelli V2 engine

1980 Motron Fairway
Minarelli V2 engine

2. 1981-85? Minarelli C2

C2 has a variable-pulley automatic transmission.

Minarelli C2 (1981-85?)
figure Minarelli# qty MMI# price description
00 15 15.0016.9 1 0000 none carb SHA14/12 jet 52 use 15.0024.9
00 15 15.0024.9 1 5650 $75.0 carb SHA14/12 jet 52, US 2.0 hp
00 15 15.0000.6 1 0000 $0.00 ∅18 sleeve, no air cover, no cable pipe
15105 15.0360.6 1 6360 $5.00 6109 fuel filter
15130 15.0410.6 1 6380 $5.00 1486 main jet #52
15170 15.0490.6 1 6430 $2.00 6123 float gasket
15255 15.0601.6 1 6530 $7.00 9249 inlet banjo black plastic angled out
15300 15.0701.6 1 6550 $10.0 2838 float needle
15000 15.0000.6 1 0000 $0.00 for full list see Carb/Dellorto/SHA14
00019 19.0320.0 1 5480 none cylinder “P” all-iron

0 31/1 31.0024.7 1 6670 $11.0 air cover bare S3 F44 #8603 black
00062 71.0410.0 1 4540 none piston assy standard 38.8 original
00062 71.0410.0 1 4540 $60.0 piston assy standard 38.8 GOL 0034
00062 71.0460.7 1 4550 $73.0 piston kit Ø39.0 (1st oversize)
00062 71.0460.7 1 4560 none piston kit Ø39.2 (2nd oversize)
00062 71.0460.7 1 4570 $73.0 piston kit Ø39.4 (3rd oversize)
00077 77.0140.0 1 5505 none head square V1P
00080 80.0108.0 1 5415 none fan V1P (not V1)
00082 82.0029.9 1 0000 none Ducati 31.03.73 mag. ∅80 Ο♦♦♦
00082 82.0033.9 1 5360 $280 CEV 6932 magneto ∅80 Ο♦♦♦ USA
00111 11.0132.9 1 W8A $5.00 spark plug W145T1=W8A=BR5HS
00211 21.0114.0 1 5445 $59.0 fan cover V1P black used
00218 21.0558.0 1 5405 $38.0 fan cover base V1P black
00582 50.0204.0 1 4823 $21.0 13 tooth sprocket (for C2)
00681 68.0115.0 2 4640 $10.0 piston ring (each) 38.8 x 1.5 GN
05320 53.0304.0 1 5460 $3.50 cylinder base gasket
49005 49.0018.0 1 5880 $4.00 air cover clamp ∅60 replica with screw
49084 49.0510.0 4 5530 $4.50 cylinder stud M6 x 136

49300 49.0935.9 4 5420 $1.20 fan screw xxxxx M4x10 TGS (threads 5-8mm)
49315 49.0950.9 4 7050 $1.00 plastic fan cover M4x25 TGS

The C2 was on only a few deluxe US moped models. It has the same all-iron cylinder, piston, “square” head, intake, carburetor, fan, and magneto as a “late” 1979-1985 V1. But the transmission and engine case is much different and longer. The bore is 38.8, not 38.7. The sprocket is 13T, not 11T.

Once again Minarelli made a two speed moped engine, but sales were less than they hoped for. The huge extra cost of the variator drive made it less affordable for most people. Morini had also made the M101, a two speed variator engine, and the MO2 two speed. But the Morini M1 reed valve one speed had better average acceleration than the Morini MO1 piston port two speed did, for a much lower cost and weight. By the late 1980’s, wise Minarelli gave up on two speeds, and “saw the light” of the one speed with case reed induction.

1983 Safari Variomatic
Minarelli C2 engine

1983 General C2
Minarelli C2 engine

Minarelli P4, P4S, P4V, P4E, P4A

January 18, 2021

Contents:
00 years carb ∅ case ndcovers cyl. 1956 part #s
1. ’63-66? ∅12 ∅44 round round iron P4
1. ’66-67? ∅19 ∅44 round round iron P4S Sport
1. ’66-67? ∅20 ∅44 round round iron P4SS Super Sport

2. ’65-70? ∅20 ∅44 round round iron P4-55 kits
2. ’65-70? ∅20 ∅44 round round iron P4-50 racing
2. ’65-69? ∅20 ∅44 round round iron P4-60 racing
00 years carb ∅ case ndcovers cyl. 1967 part #s
3. ’67-70? ∅12 ∅44 round round iron P4S
3. ’71-72? ∅19 ∅47 round round alu. P4S-al
3. ’71-72? ∅19 ∅47 round round alu. P4S-70
00 years carb ∅ case ndcovers cyl. 1970 part #s
4. ’71-73? ∅12 ∅44 round angle iron P4V
4. ’72-74? ∅19 ∅47 round angle alu. P4V-70
4. ’74-75? ∅19 ∅48 round angle alu. P4V-75

5. ’71-79? ∅12 ∅47 angle angle iron P4E Export
5. ’72-79? ∅19 ∅47 angle angle alu. P4E-al Export
5. ’72-79? ∅12 ∅44 round angle iron P4A

6. ’72-81? ∅12 ∅47 angle angle alu. P4CS Compact System

Sources:

Piccolo Giolielo – Tecnica Minarelli P4 P6 50cc by Luigi Corbetta
Motoclisimo D’Epoca 4/2003 at fantichistisettanta.forumfree.it.

Catalogo Ricambi Generale 1979 by Motori Minarelli
at passione50cc.forumfree.it.

Tecnica Motori Minarelli 50cc P4 ovalino, Monza, Cadetti, Cross
by motomorini173 at moto gran premio e 50ini.

Eclates des Moteurs collected by The Minarellist
parts for sale, free pdf manuals at Le Minarelliste.

Parts Lists and Manuals at indiandirtbikeparts.com

Service and Parts Bulletins at indiandirtbikeparts.com

1. 1963-67 Minarelli P4, P4S, P4SS

P4 has a 4-speed, foot-shift, manual clutch, kick start. All P4 crankshafts and cases have a width of 32mm between the bearings. P6 is wider, 36mm. Early P4 crankshafts have a 13mm right cone. In 1971 it became 15mm.

P4S changes: The carburetor and intake changed from Dellorto SHA 14/12 to UA19S side-float type. The cylinder, piston and rings changed changed from 38.0 x 2.5 to 38.8 x 1.5. The compression ratio increased from 7.7 to 9.0. The head changed from small round fins M2-40 to bigger straight fins M24-12. The exhaust nut thread changed from M28 to M32. The nut goes over the pipe, so the pipe is smaller than that.

1. ’63-66? P4 47.7cc (38.0 x 42)
2. ’66-67? P4S 49.6cc (38.8 x 42) Sport
3. ’66-67? P4SS 49.6cc (38.8 x 42) Super Sport
4. ’63-66? P4 parts list

4sS 1956# Minarelli# price 4 is P4, s is P4S, S is P4SS .
100 A2-11 71.0405.0 $65.0 piston kit 38.0 dome top
011 A24-31 71.0410.0 none piston kit 38.8 ball top
011 A24-31 71.0410.0 $60.0 piston kit 38.8 GOL 0034
200 A2-12 00.0000.0 $11.0 piston ring 38.0 x 2.5 GN
022 A24-7 68.0115.0 $10.0 piston ring 38.8 x 1.5 GN
110 A2-8 51.0132.7 $5.00 p. bushing ∅11.7-15×13 note 1
001 A42-10451.0301.9 $9.00 piston bearing Ø12 Ø15 x 15
111 A2-9 56.0601.0 $9.50 piston pin ∅12.00 x 31.5
222 A2-10 03.0213.0 $1.50 piston pin clip ∅12
110 A24-10 38.0005.0 none crank T-type for bushing
001 A24-32 38.0000.0 none crank O-type for bearing
110 A24-15 38.0060.7 none rod 14.95 x 13 for bushing
001 A42-101 0.0000.0 none rod 15.00 x 14 for bearing
100 M2-40 00.0000.0 none head 38.0 (testa) small rounded
010 M24-12 77.0152.0 none head (testa) 38.8 Sport QUADRO
001 M31-?? 77.0161.0  none head (testa) 38.8 Sport RECORD
444 C2-17 49.0304.9 $0.60 head nut M6 x 6
444 M2-13 49.0509.0 $3.50 cylinder stud M6 x 109 (110)
111 C1-17 51.0205.9 $10.0 left bearing 17-40-12 #6302
222 A2-19 51.0203.9 $10.0 right bearing 15-35-11 #6202
222 A2-20 53.0506.9 $8.00 left crank seal 17-35-8 or 7
111 A2-21 00.0000.0 $7.00 right crank seal 15-30-8 or 7
100 M2-5 00.0000.0 none cylinder C iron 38.0 ex-M28
011 M24-13 19.0306.0 none cylinder iron 38.8 ex-M32
111 M2-10 53.0302.0 none base gasket ∅44 40×40
100 M2-27 00.0000.0 none exhaust (scarico) M28 thread
011 M24-21 00.0000.0 none exhaust (scarico) M32 thread
100 M2-44 00.0000.0 none intake pipe 12 id x 18 od
010 M24-15 00.0000.0 none intake pipe 19 id x 24 od
001 M31-26 00.0000.0  none intake pipe 20 id x 23 od
100 M2-45 15.0024.9 $75.0 Dellorto SHA14/12 note 2
010 M24-25 00.0000.0 none carb Dellorto UA19S
001 M24-27 00.0000.0  none carb Dellorto UB20S with bell
111 A2-14 00.0000.0 none pinion gear washer
111 A2-25 00.0000.0 none pinion gear key
111 A42-1 00.0000.0 none pinion gear 13T ∅13
111 A42-2 00.0000.0 none pinion gear nut
111 A2-16 49.0124.8 none key 3.0-3.7-9.6 use M85
111 A2-16 49.0125.8 $2.00 key 3.0-3.6-9.5 M85 note 3
111 A2-17 49.0312.0 $7.00 flywheel nut M10-1.25 x 14 hex15
100 M2-19 82.0000.0 none magneto ⇐ CEV 6067 ∅94 o♦♦ 6V early
011 M16-12 00.0000.0 none magneto 6V 18w internal spark

Note 1. The piston pin bushing must be reamed after installation from 11.7 to 12.0 mm with special tools, an adjustable reamer and reamer holder tool. Here is more info.

Note 2. The genuine Dellorto SHA14/12 carburetor comes with a 52 jet, ∅18 sleeve, no air cover, no cable pipe. The F27 air cover is required for the correct air/fuel mixture. For a full parts list see Carb/Dellorto/SHA14.

Note 3. In March 1974 the flywheel key changed from 3.0 x 3.7 x 9.6 to #M85 3.0 x 3.6 x 9.5.

2. 1965-70 P4 Kits and Racers

Transformation Kits (Serie Transformazoni) with bore ∅41:

’65?-70? P4 Transformation Mini Monza
1956# Minarelli# price 55.4 cc (41.0 x 42)
A24-50 71.0475.7 none piston 41.0 flat top L-ring
M24-27 15.0000.0 none carb Dellorto UB20S with bell (cornetto)
M24-50 19.0000.0 none cylinder iron ∅41.0 M32 thread
M24-51 77.0000.0 none head (testa) 41.0
M31-26 15.0000.0 none intake pipe 20 id x 23 od

’65?-70? P4 Transformation Monza
1956# Minarelli# price same as Mini Monza except:
M24-50 19.0000.0 none cylinder ∅41.0 exhaust 35

’65?-70? P4 Transformation Super Monza
1956# Minarelli# price same as Monza except:
M24-55 77.0000.0 none head (testa) 41.0 with bigger fins

’67 Minarelli Cadetti 60

This late 1960’s Minarelli P4 engine family was intended for racing or sport riding.

P4 Racing changes: The crank changed from A24-32 (cone ∅13 pork chop flywheel) to A42-100 (cone ∅15 full circle flywheel). The width remained at 32mm. The piston changed from A24-31 (dome top 2.5 rings) to A42-102 (flat top L2.0 and 1.5 rings). The carburetor and exhaust got bigger.

’65-70? P4 50 RG Regolarita 49.6cc (38.8 x 42)
1956# Minarelli# price same as P4S except for:
A42-102 71.0413.0 none piston 38.8 flat top L-ring
A42-102 71.0463.7 none piston 39.0 oversize
A42-100 38.0063.7 none crankshaft cone ∅15 full circle
A24-104 51.0301.9 $9.00 piston bearing Ø12 Ø15 x 15
M24-30 15.0000.0 none carb Dellorto UB20S with filter
M31-26 15.0000.0 none intake pipe 20 id x 23 od
M42-111 00.0000.0 none exhaust (scarico) ∅35 x 320
M42-102 19.0000.0 none cylinder iron ∅38.8 Special
M42-208 82.0000.0 none magneto 6V 18w int. spark
M42-208 82.0000.0 none Ducati 31.02.37

’65-71? P4 50 SP Special (Velocita) same as RG except:
1956# Minarelli# price
M42-107 00.0000.0 none exhaust (scarico) ∅35 x 300

’65-71? P4 50 CR Cross same as SP except:
1956# Minarelli# price
M24-30 15.0000.0 none carb Dellorto UB20S with filter
M42-208 82.0000.0 none magneto 6V 18w int. spark,
M42-208 82.0000.0 none Ducati 31.02.32 (no lights)

In 1965 a new 60 cc class was launched in Italy to replace the 50 class. In 1970 it returned to 50 cc.

’65-69 P4 60 CA Cadetti (Velocita)
59.2cc (41.4 x 44) piston port induction
1956# Minarelli# price
A42-203 68.0000.0 none piston 41.4 with 6.5 skirt cut
M24-27 15.0000.0 none carb Dellorto UB20S with bell (cornetto)
M42-211 00.0000.0 none exhaust (scarico) ∅35 x 295
M42-202 19.0000.0 none cylinder iron ∅41.0 Cadetti
M42-208 82.0000.0 none magneto 6V 18w int. spark,
M42-208 82.0000.0 none Ducati 31.02.37

’65-69 P4 60 CR Cross
58.1cc (41.0 x 44) piston port induction
1956# Minarelli# price
A42-205 68.0000.0 none piston 41.0 with 5.5 skirt cut
M24-30 15.0000.0 none carb Dellorto UB20S with filter
M42-111 00.0000.0 none exhaust (scarico) ∅35 x 320
M42-202 19.0000.0 none cylinder iron ∅41.0 Cadetti
M42-208 82.0000.0 none magneto 6V 18w int. spark,
M42-208 82.0000.0 none Ducati 31.02.32 (no lights)

Top: 1965 Italjet Vampiro racer with P4 60 CA Cadetti (piston port induction) engine. The intake goes to the cylinder. The caption says “The Italjet Vampiro with Minarelli 60 engine presented in Monza shortly before the 1965 Milan Show. It will sell for 180 lire including the plastic fairing. Bore and stroke dimensions 41.4 x 44mm = 59.2cc. Note the built continuous double cradle frame and the four-shoe front brake.”

Bottom: 1967 Minarelli factory racer with P4 60 (rotary induction) engine. The intake goes to the crankcase. The caption says “The “lamellar” Minarelli prepared for the 1967 season has the same bore and stroke measurements as the conventionally fueled model, but delivers 9.5 HP at 10,800 rpm against the 9.0 at 10,800 rpm of the “first manner” Italjet which will also be referred to later. It comes from the “lamellar” propeller (rotary induction), with the 17 mm carburetor in direct communication with the crank arm. Always with 4% lubrication.”

In the 70’s and 80’s this engine was incorrectly referred to as a reed valve (lamellare) type, but it did not have a reed valve. Only 60 of these factory racers had this different intake system, according to moto gran premio e 50ini. Instead of piston-controlled intake (induction), it had crankshaft-controlled (rotary valve) induction. That’s what Vespa Ciao had since 1968, and Yamaha had since 1961. The reed valve had not been invented yet. It was later invented by Yamaha and first produced in 1972.

’66?-69? P4 60 QM (motor-car)
58.1cc (41.0 x 44) this also had that long stroke crank

Motori Minarelli is born: In 1967 the company name and logo changed, from F.B. Minarelli to Motori Minarelli. Above in the 1967 ad they showed off their new logo by making it as big as possible, filling an entire page width.

3. 1967-70 Minarelli P4S, P4S-al, P4S-70

Late P4S changes: This ’67-73 late P4S is 95% the same as ’65-67 P4S. Only some kick start and gearshift parts are different. This is evident from the illustrations and part numbers.

1. ’67-70 P4S 49.6cc (38.8 x 42) on 2,3. ’70-73? Fantic Chopper, Diablo
4. ’69-70 Indian Papoose, Super Scrambler, ’71 Bobcat 50, Scrambler 50
5. ’72 Indian (Italjet) JC54 , SE54 and ’67-72 Italjet JC54, SE54, others

P4S-70 changes: The case, cylinder, piston and head changed for the bigger bore, from 38.8 to 45.0 mm. In 1971 the crankshaft changed from piston pin bushing type to a needle bearing type.

1. ’71-72 P4S-70 69.9cc (45.0 x 44) on ’71-72 Indian (Italjet) SE74,
2. ’71-72 Broncco (Fantic) Diablo
3. ’72 P4S-70 and ’73 P4V-70 comparison

5a7 1967# Minarelli# price 5 is P4S, a is P4S-al, 7 is P4S-70
110 012050 71.0410.0 none piston kit 38.8 ball top
110 012050 71.0410.0 $60.0 piston kit 38.8 GOL 0034
001 000000 71.0485.7 none piston kit ∅45.0 dome top 1.5 rings
220 012054 68.0115.0 $10.0 piston ring Ø38.8 x 1.5 GN
110 012067 51.0132.7 $5.00 bushing ∅11.7-15 x 13 note 1
110 112000 38.0005.0 none crank T-type 14.95 x 13 for bushing
110 112002 77.0152.0 none head (testa) 38.8 Sport QUADRO
100 112004 70.0110.0 none right case P4 rounded
100 112005 70.0610.0 none left case P4 rounded
111 112085 53.0503.9 $7.00 right crank seal 15-30-8or7
100 162003 19.0306.0 none cylinder iron 38.8 M32 ex thread
400 162010 49.0509.0 $3.50 cylinder stud M6 x 109 (110)
400 162011 49.0304.9 $0.60 head nut M6 x 6
400 162012 49.0603.9 $0.20 head washer ∅6
100 162174 53.0302.0 none base gasket ∅44 40×40
111 162181 53.0506.9 $8.00 left crank seal 17-35-8or7
111 162190 51.0205.9 $10.0 left crank bearing 17-40-12 #6302
111 162191 51.0203.9 $10.0 right crank bearing 15-35-11 #6202
100 811901 00.0000.0 none carb Dellorto UA18? side-float
001 811901 00.0000.0 none carb Dellorto SHB 19/19
100 912301 00.0000.0 none magneto 6V 18w internal spark
100 000000 71.0611.7 none gasket set P4-SP iron

Note 1. The piston pin bushing must be reamed after installation from 11.7 to 12.0 mm with special tools, an adjustable reamer and reamer holder tool. Here is more info.

4. 1971-75 Minarelli P4V, P4V-70, P4V-75

Minarelli part numbers changed sometime around 1970.

P4V changes: The ’60’s rounded engine covers became angular, to fit the same rounded cases. In 1971 the crankshaft changed from axe (mannaia) shaped, also called pork chop shaped. The piston pin bushing 38.0005.0 changed to a needle bearing 38.0017.0.

1. 1971-75? P4V 49.6cc (38.8 x 42), 2. P4V parts, 3. P4V list
4. 1973-74 P4V-70 69.9cc (45.0 x 44) on Indian SE/ME/MX74
and ’74-75 P4V-75 74.7cc (46.5 x 44) on Indian ME/MX74

# VPP Indian# 0 Minarelli# price V=P4V, P=P4V-70, P=P4V-75
0 100 2000.1000 38.0017.0 none crankshaft ’71-on 50cc ∅15 x 42
0 011 2120.1018 00.0000.0 none crankshaft ’72-75 70cc ∅15 x 44
1 800 2000.1000 49.0863.9 $1.00 cover screw M6 x 30 allen black
1 088 2300.1121 00.0000.0 1 -.60 cover screw M6 x 30 slot
2 111 2110.1008 51.0301.9 $9.00 piston bearing Ø12 Ø15 x 15
3 100 2000.1000 56.0601.0 $9.50 piston pin ∅12 x 31.5
3 010 2110.1009 00.0000.0 $0.00 piston pin ∅12 long
3 001 2150.1010 00.0000.0 $0.00 piston pin ∅12 longer
4 222 2110.1010 03.0213.0 $1.50 piston pin clip Ø12
5 100 2000.1000 71.0410.0 none piston kit 38.8 ball top
5 100 2000.1000 71.0410.0 $60.0 piston kit 38.8 GOL 0034
5 010 2110.1011 00.0000.0 none piston kit 45.0 std 70cc
5 001 2150.1001 00.0000.0 none piston kit 46.5 std 75cc
6 200 2000.1000 68.0115.0 $10.0 piston ring Ø38.8 x 1.5 GN
6 100 2000.1000 71.0805.0 none ring set 38.8 x 1.5 GN std 50cc
6 010 2110.1016 00.0000.0 none ring set 45.0 x 1.5 GN std 70cc
6 001 2150.1006 00.0000.0 none ring set 46.5 x 1.5 GN std 75cc
7 111 2300.1024 49.0124.8 none flywheel key 3.0-3.7-9.6 use M85
7 111 2301.1024 49.0125.8 $2.00 flywheel key 3.0-3.6-9.5 M85 note 1
8 222 2300.1028 51.0207.9 $12.0 L/R crank bearing 6203/C3
9 222 2110.1121 53.0506.9 $8.00 L/R crank seal 17-35-8 or 7
10 111 2110.1023 16.2044 none pinion gear key (to 3-’74) note 2
11 222 2110.1026 51.0203.9 $10.0 bearing 6202
12 222 2110.1099 49.0603.9 $0.20 intake washer ∅6
13 111 2120.1024 01.0304.7 none main shaft Z=10-14-18-20
15 111 2110.1028 51.0137.0 none L main shaft bushing ∅13-17 x 12
25 111 2110.1041 51.0137.0 none R drive bushing ∅13-17 x 13
28 111 2110.1042 49.0682.0 none drive washer ∅15-35 x 1
29 111 2110.1043 53.0502.9 $6.00 drive seal 15-24-5
32 111 2000.1000 49.0313.9 none sprocket nut
33 111 2110.1052 40.0802.7 none pinion gear 13T
34 011 2110.1054 00.0000.0 none pinion gear washer
35 111 2110.1055 49.0310.0 none pinion gear nut
49 111 2000.1000 49.0317.0 none clutch nut M14-1.0
58 100 2000.1000 70.0110.0 none right case half ∅44 P4V
58 010 2120.1013 00.0000.0 none right case half ∅47 P4-70
58 001 2150.1029 00.0000.0 none right case half ∅48 P4-75
59 100 2000.1000 70.0610.0 none left case half ∅44 P4V
59 010 2120.1013 00.0000.0 none left case half ∅47 P4-70
59 001 2150.1028 00.0000.0 none left case half ∅48 P4-75
60 111 2120.1017 53.0332.0 none case gasket
61 222 2120.1016 56.0255.0 none mount sleeve ∅8-10 x 30
62 100 0000.0000 49.0861.9 $0.80 case screw M6 x 20 allen black
62 011 2120.1040 00.0000.0 $0.80 case screw M6 x 20 slot
63 200 0000.0000 49.0867.9 $1.40 case screw M6 x 50 allen black
63 022 2120.1014 00.0000.0 1 -.70 case screw M6 x 50 slot
64 100 0000.0000 49.0869.9 --N/A- case screw M6 x 65 allen black
64 011 2120.1085 00.0000.0 $0.80 case screw M6 x 65 slot
65 400 0000.0000 49.0865.9 $1.20 case screw M6 x 40 allen black
65 044 2300.1079 00.0000.0 1 -.70 case screw M6 x 40 slot
66 300 0000.0000 49.0862.9 $0.80 case screw M6 x 25 allen black
66 033 2110.1081 00.0000.0 $0.70 case screw M6 x 25 slot
66a 5000000.0000 49.0863.9 $1.00 clutch screw M6 x 30 allen black
66a 055 2300.1121 00.0000.0 1 -.60 clutch screw M6 x 30 slot
67 111 2300.1083 53.0473.0 $1.00 drain plug gasket ∅8-16 x 1
68 111 2300.1082 49.0911.9 $2.00 drain plug M8 x 10 hex13
69 111 2120.1011 26.0188.0 none oil splash plate
70 333 2300.1085 49.0629.9 $0.20 washer M4
71 333 2300.1086 49.0841.9 $0.50 screw M4 x 10 phil-wide
72 111 2120.1010 53.0352.0 none clutch gasket oval 6-hole
73 111 2120.1009 21.0212.0 none clutch cover 6-hole
75 111 2110.1082 53.0402.0 none name plate gasket
76 011 2110.1083 00.0000.0 none name plate “Indian”
77 222 2110.1084 49.0936.9 $0.90 name plate screw M4 x 12 phil-sunk
80 111 2300.1081 53.0401.0 $2.00 fill plug seal washer ∅12
81 111 2300.1080 24.0250.0 $8.00 fill plug
82 111 2120.1008 24.0153.0 none wires grommet
83 333 0000.0000 49.0841.9 $0.50 stator screw M4 x 10 phil-wide
84 100 2000.1000 82.0012.9 none magneto Ducati 31.02.30 ∅94
84 100 2000.1000 82.0014.9 none magneto Ducati 31.02.39 ∅94
84 011 2110.1085 00.0000.0 none magneto Ducati 31.02.38 ∅94
85 111 2300.1094 49.0312.0 $7.00 flywheel nut M10-1.25 x 14 hex15
87 111 2120.1005 21.0312.0 none magneto cover
89 400 2000.1000 49.0509.0 $3.50 cylinder stud M6 x 109 (110)
89 044 2110.1124 49.0513.0 $3.50 cylinder stud M7 x 118
90 044 2300.1108 49.0604.9 $0.20 head washer M7
91 400 2000.1000 49.0304.9 $0.60 head nut M6 x 6
91 044 2300.1109 49.0306.9 $1.20 head nut M7 x 7
92 100 2000.1000 53.0302.0 none base gasket ∅44 40×40
92 011 2110.1086 53.0306.0 none base gasket ∅48 48×48
93 100 2000.1000 19.0306.0 none cylinder 50cc ∅38.8-44 iron M32
93 010 2110.1087 00.0000.0 none cylinder 70cc ∅45.0-47 aluminum
93 001 2110.1087 00.0000.0 none cylinder 75cc ∅46.5-48 aluminum
94 100 2 000.1000 53.0417.0 none head gasket ∅40-55 x 0.7
94 010 2110.1088 00.0000.0 none head gasket ∅47-55 x 0.7?
94 001 2150.1012 00.0000.0 none head gasket ∅48-55 x 0.7?
95 100 2000.1000 77.0152.0 none head (testa) Sport QUADRO
95 100 2000.1000 77.0161.0 none head (testa) Sport RECORD
95 011 2110.1089 00.0000.0 none head 70-75cc
98 100 2110.1091 00.0000.0 none intake gasket
99 100 2120.1003 00.0000.0 none intake pipe
100 200 2110.1093 49.0304.9 $0.60 intake nut M6 x 6
101 100 2000.1000 15.0016.9 none carb SHA 14/12 use 15.0024.9
101 100 2000.1000 15.0024.9 $75.0 carb Dellorto SHA 14/12 note 3
102 011 2110.1096 00.0000.0 none exhaust flange
103 011 2110.1095 00.0000.0 $0.00 exhaust gasket
104 044 2110.1097 49.0631.9 $0.30 exhaust washer ∅6
105 044 2110.1098 49.0204.0 $0.00 exhaust nut M6 x 23
107 111 2110.1100 49.0922.0 none bolt M12 x 26
108 111 2300.1114 53.0471.0 none seal washer ∅12
147 111 2300.1151 49.0622.9 $1.00 flywheel washer M10 thin

Note 1. Indian Service Bulletin SVB-153: In March 1974 the flywheel key 2300.1024 changed to 2301.1024, slightly shorter. That improved the seating (fit) of the flywheel, so it had less tendency of becoming loose and damaging the key and key groove.

Note 2: Indian Service Bulletin SVB-153: In March 1974 the pinion gear key 2110.1023 was eliminated. It is not needed as long as the pinion gear nut is tight. The key was on the ’67-70 P4S but was already eliminated on the ’71-75 P4V. That’s why there is only a 1960’s Minarelli part number for it.

Note 3. The genuine Dellorto SHA14/12 carburetor comes with a 52 jet, ∅18 sleeve, no air cover, no cable pipe. The F27 air cover is required for the correct air/fuel mixture. For a full parts list see Carb/Dellorto/SHA14.

P4V gears: P4V gears 1 to 4 had a 56 tooth total for each pair, 23+33, 27+29, 30+26, 33+23.

5. 1971-79 Minarelli P4E, P4E-al, P4A

P4E changes: The engine case changed from round to angular. The cylinder hole grew from ∅44 to ∅47. The cylinder studs grew from 40×40 to 48×48. This made room for bigger ports for more power, and made bigger bores 70 or 75cc possible, also for more power. The pork-chop all-needle-bearing P4V crankshaft became a full circle type. The exhaust bolts to the cylinder with a 3-bolt flange, instead of screwing on with a special inverted nut.

‘
1,2,3. ’71-79? P4E 49.6cc (38.8 x 42) Export in ghisa (iron)
4. ’78-79? Italjet CX50, 5. ’78-79? Italjet SX50

‘
1,2,3. ’71-79? P4E-al 49.6cc (38.8 x 42) Export in aluminio
flat top (testa piatta) piston, L-ring, 4. ’78-79 Italjet CX50R

1. ’71-79? P4A 49.6cc (38.8 x 42) P4V cases, covers
2. P4E, P4E-al, P4A parts list

PPa figure Minarelli# price P is P4E, P is P4E-al, a is P4A
101 00015 15.0020.9 $75.0 carb SHA 14/12 note 1
010 00015 15.0029.9 none carb Dellorto SHB 19/19D
100 00019 19.0314.0 none cylinder iron ∅44 ∅32 3-bolt
010 00019 19.0002.0 none cylinder alu. ∅47 ∅?? 4-bolt
001 00019 19.0306.0 none cylinder iron ∅44 ∅32
001 00019 19.0315.0 none cylinder iron ∅44 ∅28
111 00031 31.0010.6 $12.0 air cover F27 large sloping
101 00068 71.0410.0 none piston kit 38.8 ball top
101 00068 71.0410.0 $60.0 piston kit 38.8 GOL 0034
010 00068 71.0413.0 none piston kit flat top L-ring
010 00068 71.0463.7 none piston kit flat top oversize
100 00077 77.0115.0 none head (testa) EXPORT GHISA
010 00077 77.0110.0 none head (testa) NORMALE
010 00077 77.0111.0 none head (testa) SP bigger fins
001 00077 77.0152.0 none head (testa) QUADRA SPORT
001 00077 77.0161.0 none head (testa) RECORD SPORT
111 00082 82.0014.9 none magneto Ducati 31.02.39 2-wire ⇐, ext. spark coil
110 00212 21.0232.0 none clutch cover grey
110 00212 21.0233.0 none clutch cover black
110 00214 21.0328.0 none magneto cover grey
110 00214 21.0335.0 none magneto cover black
111 00381 38.0037.0 none crankshaft cone ∅15 full circle
101 00681 68.0115.0 $10.0 upper ring Ø38.8 x 1.5 GN
010 00681 68.0116.0 $11.0 upper ring Ø38.8 x 2.0 L
111 00681 68.0115.0 $10.0 lower ring Ø38.8 x 1.5 GN
110 00701 70.0116.0 none right case ∅47 angular
001 00701 70.0110.0 none right case ∅44 round
110 00702 70.0616.0 none left case ∅47 angular
001 00702 70.0610.0 none left case ∅44 round
111 00821 82.0006.6 $16.0 points (ruttore) CEV 04229 = M14
111 00823 82.0132.6 $13.0 condenser Ducati ∅17.9 = M17
111 05113 51.0301.9 $9.00 piston bearing Ø12 Ø15 x 15
110 05320 53.0306.0 none base gasket ∅47 48×48
001 05320 53.0302.0 none base gasket ∅44 40×40
111 05670 56.0601.0 $9.50 piston pin Ø12.00 x 31.5
222 09323 03.0213.0 $1.50 piston pin clip Ø12
100 49015 49.0124.8 $2.00 woodruff key (chiavetta) #M85 3.0 x 3.6
440 49037 49.0306.9 $1.20 head nut M7 x 7
100 49039 49.0310.0 none pinion nut
100 49040 49.0312.0 $7.00 flywheel nut M10-1.25 x 14 hex15
100 49041 49.0313.9 none sprocket nut
100 49042 49.0317.0 none clutch nut M14-1.0
440 49084 49.0513.0 $3.50 cylinder stud 7 x 118.5 (120)
600 49226 49.0841.9 $0.50 stator screw M4 x 10 phil-wide

Note 1. The genuine Dellorto SHA14/12 carburetor comes with a 56 jet, ∅18 sleeve, no air cover, no cable pipe. The F27 air cover is required for the correct air/fuel mixture. For a full parts list see Carb/Dellorto/SHA14.

P4E gears: P4E gears 1 to 4 had a 43 or 44 tooth total for each pair, 10+33, 14+29, 18+26, 20+23.

6. 1972-81? Minarelli P4CS

Left, 1979? P4CS Compact System
Right, 1981 Testi Cricket 4M with P4CS

page 66, 68 Minarelli P4 P6 magneto, carburetor parts (026 missing)

page 70: Minarelli P4 P6 transmission parts, covers, levers, tools

Crankshaft parts for all motors 1960’s – 70’s

Contents: 1. Explanations 2. Rings for Sale

1. Explanations

Two-Stroke Piston Ring Types C, T, L

Two-Stroke Ring Gap Types N, I

2. Rings for Sale

Ring Information

1. Sachs Engines

Contents:

1. Pedal models with G2-G or G2-R engine Benelli G2-US, Blazer-US, G2, Bobo Guzzi G2-US, Chiü-US, Robin-US, Chiü

2. Kick models with G2K-G or G2K-R engine Gentleman (late), Motorella, G2 Elle, G2 KS

1. Pedal models with G2-G or G2-R engine

Here three parts catalogs are combined into one list.

2. Kick models with G2K-G or G2K-R engine

Contents:

1. US models with 4M or 4MS engine Fireball, Sprint, Riverside 450-SS Dynamo Compact, Dynamo Trail, Super Mini

2. US models with 4M65 engine Dynamo Compact, Dynamo Trail (Scrambler) Woodsbike, Cougar, Mini Enduro

1. US models with 4M or 4MS engine

49cc vertical cylinder 4-speed foot-shift, manual clutch.

Benelli 4M and 4MS Engine Parts

Benelli Dynamo Frame Parts A. ’68-69 Compact B. ’69-71 Compact

Benelli Dynamo Compact ’68-71 Frame Parts

Benelli Dynamo Compact ’68-69 Other Parts

2. US models with 4M65 engine

59cc vertical cylinder 4-speed foot-shift, manual clutch.

Benelli 4M65 Engine Parts

Benelli Dynamo Frame Parts d. ’72-77 Dynamo with 4M65 engine t. ’69-69 Dynamo Trail 4M or 4MS engine t. ’70-75 Dynamo Trail (Scrambler) 4M65 engine w. ’70-72 Woodsbike with 4M65 engine

Benelli Dynamo Other Parts d. ’72-77 Dynamo with 4M65 engine t. ’69-69 Dynamo Trail 4M or 4MS engine t. ’70-75 Dynamo Trail (Scrambler) 4M65 engine w. ’70-72 Woodsbike with 4M65 engine

Contents:

1. Pedal models with 3V engine Benelli 3V

2. Kick models with 3VK or 3VK-78 engine Benelli 3VK, Magnum 3V, Export 3V Riverside 350-S (US)

Benelli models with 3V, 3VK, 3VK-1978 engines

49cc vertical cylinder 3-speed grip-shift, manual clutch.

Contents:

1. Pedal models with GM engine ’65-69 Gentlemen, ’69 Maverick-US, ’67 Automatic-US

2. Kick models with GK engine ’69 Buzzer-US

3. Kick models with GK65 engine ’69-71 Hornet-US, ’70-72 Buzzer-US

Pedal models with GM, GK engines 1965-73

49cc horizontal cylinder 1-speed, automatic clutch

Benelli models with GK65 engines 1969-73

59cc horizontal cylinder 1-speed, automatic clutch

Contents:

1. Benelli models with FA engines ’57?-’76

1. Benelli models with FA engines 1957?-1976

49cc vertical cylinder 1-speed automatic clutch

Benelli FA Engine

Parts List

1. 1972-85? Minarelli G1, G1-KS

2. 1979-85? Minarelli G1R, G1R-KS

1. 1977-80? Minarelli V2

2. 1981-85? Minarelli C2

1. 1963-67 Minarelli P4, P4S, P4SS

2. 1965-70 P4 Kits and Racers

3. 1967-70 Minarelli P4S, P4S-al, P4S-70

4. 1971-75 Minarelli P4V, P4V-70, P4V-75

5. 1971-79 Minarelli P4E, P4E-al, P4A

6. 1972-81? Minarelli P4CS

test1

Contents:
1. Explanations
2. Rings for Sale

1. Pedal models with G2-G or G2-R engine
Benelli G2-US, Blazer-US, G2, Bobo
Guzzi G2-US, Chiü-US, Robin-US, Chiü

2. Kick models with G2K-G or G2K-R engine
Gentleman (late), Motorella, G2 Elle, G2 KS

1. US models with 4M or 4MS engine
Fireball, Sprint, Riverside 450-SS
Dynamo Compact, Dynamo Trail, Super Mini

2. US models with 4M65 engine
Dynamo Compact, Dynamo Trail (Scrambler)
Woodsbike, Cougar, Mini Enduro

Benelli Dynamo Frame Parts
A. ’68-69 Compact
B. ’69-71 Compact

Benelli Dynamo Frame Parts
d. ’72-77 Dynamo with 4M65 engine
t. ’69-69 Dynamo Trail 4M or 4MS engine
t. ’70-75 Dynamo Trail (Scrambler) 4M65 engine
w. ’70-72 Woodsbike with 4M65 engine

Benelli Dynamo Other Parts
d. ’72-77 Dynamo with 4M65 engine
t. ’69-69 Dynamo Trail 4M or 4MS engine
t. ’70-75 Dynamo Trail (Scrambler) 4M65 engine
w. ’70-72 Woodsbike with 4M65 engine

1. Pedal models with 3V engine
Benelli 3V

2. Kick models with 3VK or 3VK-78 engine
Benelli 3VK, Magnum 3V, Export 3V
Riverside 350-S (US)

1. Pedal models with GM engine
’65-69 Gentlemen,
’69 Maverick-US, ’67 Automatic-US

2. Kick models with GK engine
’69 Buzzer-US

3. Kick models with GK65 engine
’69-71 Hornet-US, ’70-72 Buzzer-US