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Morini Engine

August 26, 2018

Italy FlagMoto FBM (Fabbrica Bolognese Motocicli) 224 Via Battindarno, Bologna, Italy was founded in 1951 by Vittorio Minarelli and Franco Morini, nephew of Alphonso Morini. The two young Italian engineers produced 125 to 250cc motorcycle engines for other makers.

F. Morini is not Franco Morini

In 1954 Minarelli and Morini made their first moped engine, the P48 Pettirosso, a 48cc 2-stroke 2-speed cable-shift type, and later the P3 3-speed version. See Misc Italian, scroll to Moto FBM.

In 1956 Moto FBM split into F.B. Minarelli and Motori Morini Franco. See Minarelli Motor.

Moto Morini is not
Motori Morini Franco

Motori Morini Franco is not Moto Morini. Moto Morini was founded in 1937 in Bologna Italy by Franco Morini’s uncle, Alphonso Morini. Alphonso Morini was an accomplished motorcycle racer and mechanic. Since 1925 he was building motorcycles and setting world records. Moto Morini is most famous in the US for their 1970’s 350cc V-twin motorcycle, Moto Morini 3½. See Wikipedia.

Motori Morini Franco is not F. Morini. F. Morini is a US-model moped brand name, made by Lem. See F. Morini.

Hereafter, “Morini” means “Motori Morini Franco”, not the others.

Here their 1979 ad proclaims “tanti ciclomtori, un solo motore”
(many mopeds, only one motor).

Motori Morini Franco engines have been used by (US brands in red):

AIM, Aprilia, Arciero, BarettaBenvenuti, Beta, Bianchi, B.M., BSA,
Chiorda, Cimatti, Cosmo, Colt, D.M.T., F. Morini, Factory Bike (Spain),
Fantic, Garelli, Husqvarna, Intramotor, Intramotor-GloriaItaljet,
Italvelo, Italtelai, ITOM, KTM. LEM, Macbor (Spain), Malaguti,
Mecatecno, Monark, Motobecane Sebring, Moto Gori, Moto Meteora,
Moto Müller, Moto Villa,
Negrini, NVT, Omer, 
Oscar, Pacer, Paloma,
Peripoli, Proxon, Rivara, Scorpion, Snark, Spisni Lino, S.W.M.,
Tecnomoto, T.G.M., Titan,
TM Racing, Ufo, Velomec, Viking, West Wind.

 

 Contents:

Morini Engines  1. Combined Parts List for ’76-85 US models
 
 2. 1950’s 50-70cc 2,3-speed vertical-cylinder
  
3. 1960’s  50cc 1,2,3-speed vertical-cylinder
  4. 1960’s   50cc  four-speed vertical-cylinder

  
5. 1970’s   50cc  1, 2-speed horizontal-cylinder
  6. 1970’s   50cc  one-speed vertical-cylinder

  
7. 1980’s   50cc  1, 2-speed horizontal-cylinder
  8. 1980’s   50cc  one-speed vertical-cylinder

  
9. 1990’s   50cc  1, 2-speed horizontal-cylinder
10. 1990’s   50cc  one-speed vertical-cylinder


1. Combined Parts List

This list came from the 1980 Marina Mobili Parts Catalog (black notebook) and 1985 Marina Mobili Parts Catalog with Master Price List (yellow notebook). It is for US models 1976-85. Other models from different times and places might also have some of these parts. 

MMI: In the late 1970’s US moped dealers got their Morini engine parts from the bike brands they carried, such as Negrini, Malaguti, and Pacer. In the 1980’s Marina Mobili Inc (MMI) bought out those and many other brands, and combined the inventory into one source. MMI also imported parts directly from Italian manufacturers like Franco Morini, Minarelli, Dellorto, CEV, Grimeca, and others. Besides pedal-powered mopeds, Franco Morini 50cc kick-start engines were on US models of mini-cycles, such as 1970’s Indian (Italjet). Parts for those with S5K2, S5E, S5N, S5R, and S5T 50cc engines are included in this MMI master list.

Eight applications columns contain illustration numbers from these six illustrations.   

MO, MO1

MO2

M1

M101

S5K2, S5R

S5T

 

 

 

 

Prices: bright green is new, dark green is used, N/A is not available. Specifications are in orange.
Morini numbers from Marina Mobili 1985 price list are in dark blue. Add-ons are gold.
Illustration numbers: black means “on all”, gray means “on some”, 000 is “on none”, 000 is “on all, not shown”

Here are the right side clutch covers, useful for identification. All are 50cc automatic transmission.
All except S5R are limited in power and speed. Pedal types also have kick versions, not shown here.


000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description
042 042 000 000 000 000 000 000  10-0009   N/A  crankshaft, bushing-type for MO, early MO1
000 000 000 034 000 000 000 000  10-0015   N/A  crankshaft, bearing-type for M1
000 000 000 000 000 031 000 000  10-0033   N/A  crankshaft, bushing-type for S5K, early S5K2
000 000 035 000 000 000 000 000  10-0042   N/A  crankshaft, bushing-type for early MO2
000 042 000 000 000 000 000 000  10-0045   N/A  crankshaft, bearing-type for late MO1
000 000 035 000 000 000 000 000  10-0046   N/A  crankshaft, bearing-type for late MO2
000 000 000 000 029 000 000 000  10-0049   N/A  crankshaft, bearing-type for M101
000 000 000 000 000 031 000 000  10-0052   N/A  crankshaft, bearing-type for late S5K2
000 000 000 000 000 000 000 000  10-0100   N/A  shaft, starting for 1990’s-2000’s S5
000 000 000 000 000 000 000 000  10-1011   N/A  shaft, starting xxxxxxxx for S5K (back-kick)
098 098 000 083 000 000 000 000  10-1020   N/A  shaft, pedal xxxxxxxxxx for MO1/M1
000 000 000 000 000 000 000 000  10-1024   N/A  shaft, secondary (drive) for S5K
084 084 000 000 000 000 000 000  10-1028   N/A  shaft, primary xxxxxxxx for MO1
085 085 000 000 000 000 000 000  10-1029   N/A  shaft, secondary (drive) for MO1
000 000
097 000 000 000 000 000  10-1035   N/A  shaft, pedal xxxxxxxxxx for MO2
000 000
081 000 000 000 000 000  10-1036   N/A  shaft, primary xxxxxxxx for MO2
000 000 000 000 000 
062 062 000  10-1051   N/A  shaft, secondary (drive) for S5K2, S5R
000 000 000 000 000 048 048 000
  10-1052   N/A  shaft, starting Ø16 xxxx for S5K2, S5R
000 000 000 000 000 000 000 000  10-1076   N/A  shaft, secondary (drive) for S5T?
000 000 000
071 000 000 000 000  10-1087   N/A  shaft, primary xxxxxxxx for M1
000 000 000
072 000 000 000 000  10-1088   N/A  shaft, secondary (drive) for M1
000 000 000 000 000 000 000 000  10-1089   N/A  shaft, primary xxxxxxxx for  ??
000 000 000 000
056 000 000 000  10-1091   N/A  shaft, primary xxxxxxxx for M101
000 000 000 000
104 000 000 000  10-1093   N/A  shaft, pedal xxxxxxxxxx for M101
000 000 000 000
057 000 000 000  10-1098   N/A  shaft, main xxxxxxxxxx  for M101
000 000 000 000 000 000 000
 048  10-1109   N/A  shaft, starting xxxxxxxx for S5T
051 051 042 047 051 34A 
034 034  10-4001    $2  clip, wrist pin for Ø12 hole
071 071 000 065 000 000 000 000  10-4006    $8  clip, clutch plate for Ø85 hole for MO1, M1
102 102 111 090 111 
072 000 000  10-5005    $2  snap ring, outer for Ø16 shaft
000 000 094 000 000 000 000 000  10-5006   N/A
  snap ring, outer for Ø12 shaft for MO2, M1
000 000
083 062 000 000 000 000  10-5009   N/A  snap ring, outer for Ø13 shaft for MO2, M1
000 000 000 000 102 000 000 000  10-5011   N/A
  snap ring, outer for Ø6 shaft for M101
000 000 000 000 000 
081 081 081  10-5019   N/A  snap ring, outer for Ø?? shaft late S5K2, S5R
000 000 000 000 000 000 000 000  10-5020   N/A
  snap ring
000 000 000 000 079 000 000 000  10-5023   N/A  snap ring, inner for Ø?? hole for M101
000 000 000 000 081 000 000 000  10-5024   N/A  snap ring, outer for Ø?? shaft for M101
000 000 000 000 068 000 000 000  10-5028   N/A  snap ring, outer for Ø?? shaft for M101
057 057 047 038 033 038 038 038  10-6001    $8  seal, crank shaft  17 x 35 x 8 (or 7)
092 092 104 000 000 000 000 000  10-6003    $6  seal,
drive shaft  15 x 24 x 5
105 105 113 088 109 000 000 000  10-6004    $7  seal,
pedal shaft  16 x 24 x 5
000 000 000 079 091 06
4 064 064  10-6008    $8  seal, drive shaft  15 x 24 x 7 (or use 15x24x5)
000 000 048 000 000 000 000 000  10-6012    $8 
seal, crank shaft  20 x 35 x 8 (or 7)
000 000 000 000 097 000 000 000  10-6019   N/A
  seal, engage shaft 6 x 15 x 4
000 000 000 000 080 000 000 000  10-6020   N/A
  seal, variator    19 x 24 x 3.8
000 000 000 000 074 000 000 000  10-6021   N/A
  seal, variator    13 x 19 x 3
000 000 000 000 000 000 038 038  10-6025    $8  seal, crank shaft  17 x 35 x 7 for 1990’s-2000’s S5 
078 078 000 061 000 000 000 000  10-7002    $2  o-ring, starting lever Ø2 x 9 id (13 od) for MO1, M1
000 000 000 000 000 060 000 000  10-7003   N/A  o-ring, starting shaft Ø2 x 14?id (18?od) S5K, S5K2 
000 000 000 000 000 000 000 000  10-7024   N/A  o-ring, starting shaft Ø2 x ?? id (?? od) for S6  
000 000 000 000
101 000 000 000  10-7530    $3  engage shaft Ø6 for M101
000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO200  M101000 S5R 000   Morini#  price   description
049 049 129 000 000 000 000 000  11-0004   N/A  connecting rod assy, bushing-type for MO1, early MO2
000 000 129 0
35 030 032 000 000  11-0015   N/A  connecting rod assy, bearing-type late MO2,M1,M101,S5K2
000 000 000 000 000 000 000 000  11-0021? $35  connecting rod assy, bearing-type for ??
000 000 000 000 000 000 000 000  11-0035   N/A  connecting rod assy, bearing-type for Lem Cayman 50 ATV
000 000 000 000 000 000 000 000  11-0049   N/A  connecting rod assy, bearing-type for  FM65 Lem RX65
000 000 000 000 000 032 000 000  11-1005   N/A  connecting rod bare, bushing-type for S5K, early S5K2
048 048 132 000 000 000 000 000  11-5001    $8  bushing, piston pin Ø12 x 15 x 15 for MO1, early MO2, S5K
048 048 132 000 000 000 000 000  11-5001  cont.  hole is intentionally small, requires reaming after installation
090 090 103 000 000 000 000 000  11-5002   N/A  bushing with lip prim. shaft Ø13 Ø17 x 17 for MO1, MO2
091 091 000 075 000 000 000 000  11-5003   N/A  bushing with lip, gear shaft Ø?? Ø?? x ?? for MO1, M1
000 000
 054 000 000 000 000 000  11-5007   $18  bushing plain, clutch drum Ø18 Ø20 x 17.5 for MO2
069 000 000 000 000 047 000 000  11-5009   N/A  bushing plain, clutch drum Ø15 Ø18 x 18.5 (use 11-5010)
069 069 000 053 000 047 000 000  11-5010   N/A  bushing plain, clutch drum Ø15 Ø18 x 18.5 MO1, M1, S5K2
000 000 062 000 000 000 000 000  11-5013   N/A  bushing plain, clutch hub   Ø19 Ø22 x 31.75 for MO2
000 000 061 000 000 000 000 000  11-5016   N/A  inner steel tube, clutch hub Ø15 Ø19 x 32.5 for MO2
000 000 091 000 000 000 000 000  11-5017   N/A  bushing plain, first gear 59T Ø17 Ø19 x 20 for MO2
000 000 000 000 000 000 000 000  11-5028   N/A  bushing
000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description
111 000 000 000 000 000 000 000  12-0008   N/A  carburetor SHA 14/12 #50 fits 16 MO (use 12-0012)
111 111 118 000 000 080 000 000  12-0012   N/A  carburetor SHA 14/12 #50 fits 16 MO1,MO2,S5K,S5K2(A=2.2hp)
000 000 086 000 000 000 000 000  12-0025   $95  first gear 59T with ratchet ring & bushing for MO2
111 111 118 000 000 080 000 000  12-0061   N/A  carburetor SHA 14/9,  #43 fits 16 MO1,MO2,S5K,S5K2(B=1.4hp)
000 000 000 000 000 000 000 000  12-0068   N/A  carburetor SHB 19/19D #? fits 24? for S5R
000 000 000 000 042 000 000 000  12-0106   N/A  variator housing-drum for M101
000 000 000 026 021 000 000 000  12-0108   N/A  carburetor SHA 14/12 #52 fits 18 for M1, M101, S5T
000 000 000 000 000 015 000 000  12-2007   N/A  cylinder & piston  cast iron  rounded   38.0 S5K,K2 (A=2.2hp)
000 000 000 000 000 015 000 000  12-2018   N/A  cylinder & piston  cast iron  rounded   38.0 S5K,K2 (B=1.4hp)

000 004 004 000 000 000 000 000  12-2038 $200-$170 cyl-piston aluminum 1977-type 40.4 for MO1, MO2
000 004 004 000 000 000 000 000  12-2050   N/A  cylinder & piston  cast iron 1975-type 40.4 for MO1, MO2
000 004 004 000 000 000 000 000  12-20xx   $180 cylinder & piston  cast iron 1975-type 40.4 MO1,MO2(1.0hp)
000 000 000 000 000 000 069 000  12-2052   N/A  cylinder & piston aluminum  big  fins   39.0 for S5R
000 000 000 007 006 000 000 000  12-2061 $200-$170 cyl-piston aluminum case-reed  40.4 for M1, M101
000 000 000 007 006 000 000 000  12-2062   N/A  cylinder & piston  cast iron  case-reed 40.4 for M1, M101
000 000 000 000 000 000 000 092  12-2068   N/A  cylinder & piston aluminum reed-type 39.0 for S5T
000 000 000 000 000 000 000 069  12-2076   N/A  cylinder & piston alumin.  square fins  39.0 for S5N
000 000 000 000 000 000 069 000  12-2099   N/A  cylinder & piston cast iron square fins 39.0 for S5E
000 000 003 000 000 000 000 000  12-4034   $60  cover, clutch for MO2
000 000 000 000 000 000 000 000  12-4044   N/A  cover, magneto for MO4
000 000 000 000 000 009 000 000  12-4049   N/A  cover, clutch for early S5K2 (use 12-4054)
000 000 000 000 000 009 000 000  12-4054   N/A  cover, clutch for late S5K2
000 006 006 000 000 000 000 000  12-4074   $25  cover, magneto (flywheel), plain for MO1, MO2
006 000 000 000 000 000 000 000 12-4074G  N/A  cover, magneto (flywheel), says Gyromat for MO
000 006 000 000 000 000 000 000 12-4074L  $35  cover, magneto (flywheel), late Gyromat for  MO1
006 000 000 000 000 000 000 000 12-4074M $35  cover, magneto (flywheel), says Malaguti for MO
000 003 000 000 000 000 000 000  12-4075   N/A  cover, clutch w/ cable stop, plain for MO1
003 000 000 000 000 000 000 000 12-4075G  N/A  cover, clutch w/ cable stop, says Gyromat for MO
000 003 000 000 000 000 000 000 12-4075L   N/A  cover, clutch w/ cable stop, late Gyromat for MO1
003 000 000 000 000 000 000 000 12-4075M  N/A  cover, clutch, no cable stop Malaguti Gyromat for MO
000 000 000 006 000 000 000 000  12-4083   N/A  cover, magneto (flywheel) for M1, M1K
000 000 000 004 000 000 000 000  12-4084   N/A  cover, clutch w/cable stop for M1
000 000 000 000 004 000 000 000  12-4088   N/A  cover, clutch  (variator)    for M101
000 000 000 000 005 000 000 000  12-4089   N/A  cover, magneto (flywheel) for M101
000 000 000 000 000 000 000 009  12-4112   N/A  cover, clutch, black for S5T
000 000 000 000 000 000 000 000  12-4260   N/A  cover, magneto for late 1990’s S6
056 056 045 037 032 037 037 037  12-6001    $8  ball bearing, crankshaft #6203 17 x 40 x 12
089 089 102 076 061 063 063 063  12-6002    $8  ball bearing, drive shaft #6202 15 x 35 x 11
000 000 096 000 000 000 000 000  12-6003    $7  ball bearing, prim. shaft #6201   12 x 32 x 10 for MO2
000 000 046 000 000 000 000 000  12-6007  $12  ball bearing, right crank #6204 20 x 47 x 14 for MO2
095 095 107 000 000 000 000 000  12-7002 M-96 key, sprocket 3.0 x 4.7 x 12.3 chamfered M-96 for MO1, MO2
000 000 090 000 000 000 000 000  12-7002 cont.  key, primary shaft same key as Vespa (Piaggio) for MO2
000 000 000 000 000 011 000 000  12-7004   N/A  cover, magneto (round) for S5K2
000 000 056 000 000 000 000 000  12-7012  $30  clutch shoe (each) primary 3-45° grooves for MO2
000 000 064 000 000 000 000 000  12-7014  $30  clutch shoe (ea) secondary 2-90° grooves for MO2
106 106 114 107 000 000 000 000  12-7016  $12  pedal chain #35 x 32 link, no master for MO1, MO2, M1
109 109 117 092 000 000 000 000  12-7017    $2  pedal crank wedge pin Ø9 use H-134
064 064 000 057 000 043 043 043  12-7020  $30  clutch shoe (ea) tire tread surface for MO1, M1, S5K2
066 066 058 058 000 045 045 045  12-7021  $10  clutch shoe link #520 chain master 5/8″ x 2/8″
070 070 000 064 000 000 000 000  12-7022  $35  clutch starting plate for MO1, M1
058 058 049 040 035 039 039 039  12-7025    $2  woodruff key, flywheel 2.5 x 3 x 9 use M-83
000 000 000 098 000 000 000 000  12-7026    $3  spark plug Bosch W7D = NGK BP5ES for M1
118 118 123 000 000 000 000 000  12-7027    $3  spark plug Bosch W8D = NGK BP6ES for MO1/MO2
000 000 089 000 000 000 000 000  12-7029  $45  gear, second, driven 52 tooth for MO2
000 000 078 000 000 000 000 000  12-7061    $5  start cable inner for MO2 use #WTG Ø4×5 end
000 000 000 000 000 075 000 000  12-7074    $3  spark plug Bosch W7A = NGK B6HS for S5K2
000 000 000 000 118 000 000 000  12-7075    $3  spark plug Bosch W7D = NGK BP6ES for M101
000 000 000 000 000 000 092 000  12-7118   N/A  head nut M6 tall for S5R
000 000 000 000 043 000 000 000  12-7140   N/A  variator roller housing for M101
000 000 000 000 085 000 000 000  12-7141   N/A  clutch drum for M101
000 000 000 000 108 000 000 000  12-7142   N/A  pedal chain #35 x ?? link, no master  for M101
000 000 000 000 038 000 000 000  12-7144   N/A  drive belt for M101
000 000 000 000 095 000 000 000  12-7145   N/A  cotter pin, engage lever for M101
000 000 000 000 043 000 000 000  12-7151   N/A  variator roller housing for M101
000 000 000 000 000 000 000 019  12-7158   N/A  cylinder stud for S5T
000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description
000 000 065 000 000 000 000 000  13-0001  $45  starting clutch plate for MO2
000 000 000 000 121 000 000 000  13-0003   N/A  decompression valve for M101
016 016 016 017 015 020 000 000  13-1001  50¢  nut, cylinder head M6 – 1.00 x 6 hex10

094 094 106 081 088 067 000 000  13-1002  $10  nut, sprocket xx  M12 – 1.25 x 6 hex17
072 072 125 041 000 000 000 000  13-1003   N/A  nut, clutch xxxx  M12 – 1.25 x 8 hex17
082 082 000 077 000 000 000 000  13-1003 cont.  nut, prim. shaft   same
012 012 012 000 000 000 000 000  13-1004  50¢  nut, intake stud    M5 – 0.80 x 5 hex8
000 000 000 000 087 000 000 000  13-1006  50¢  nut, pulley rear   M8? – 1.25 x 6? hex13? for M101

059 05
9 050 039 034 040 000 000  13-3007  $10  nut, flywheel  xx  M8 – 1.25 × 16 hex15
000 000 092 000 000 000 000 000  13-3017  $12  nut, prim. shaft   M14 – 1.25 x 8  hex19 for MO2
014 014 014 020 018 000 000 000  13-3023    $2  nut, tall exhaust   M5 – 0.80 x 25 hex8
000 000 000 000 
063 000 000 000  13-3026  50¢  nut, pulley rear   M24-0.80 x 5 hex32 = Vespa for M101
000 000 000 000 037 000 000 000  13-3027  50¢  nut, clutch front   M8 – 1.25 x 7 hex24 = Vespa for M101
000 000 068 000 000 000 000 000  13-50??  $10
  plate, starter, 3 studs thick for no bushings for early MO2
000 000 068
 000 000 000 000 000  13-5015  $15  plate, starter, 3 studs for bushings 16-0026 for late MO2
000 000 000 000 000 000 000 000  13-5031  50¢  plate, clutch back for MO1, M1
000 000 000 000 000 000 000 000  13-5034  50¢  housing, main clutch for M101
000 000 000 000 000 000 000 000  13-5035  50¢  disc, variable drive for M101
000 000 000 000 000 000 000 000  13-5037  50¢  disc, clutch for M101

026 026 026 000 000 000 000 000  13-6004    $7  spacer-insulator, intake Ø5-36 19×10 for MO1,MO2
000 000 000 000 000 000 000 000  13-6012  50¢  spacer, 1st/2nd gear for MO2
000 000 000 000 000 000 000 000  13-6036  50¢  adjuster, starter cable for MO2
000 000 000 000 000 000 000 000  13-6043  50¢  spacer, pedal shaft for M101
000 000 000 000 000 000 000 000  13-6044  50¢  sleeve, variable speed for M101
000 000 000 000 000 000 000 000  13-6046  50¢  sleeve, engage shaft for M101
000 000 000 000 000 000 000 000  13-6047  50¢  spacer, variable speed for M101

Franco Morini tools

000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description

000 000 000 000 000 000 000 000  14-0500   N/A  complete Morini tool kit
000 000 000 000 000 000 000 000  14-0501 tools flywheel puller M19-1.0 & M22-1.5
000 000 000 000 000 000 000 000  14-0503   N/A  puller for ?
000 000 000 000 000 000 000 000  14-0506   N/A  clutch and flywheel holder
000 000 000 000 000 000 000 000  14-0507   N/A  sprocket holder
000 000 000 000 000 000 000 000  14-0508 tools clutch and trans puller
000 000 000 000 000 000 000 000  14-0509   N/A  clutch holder
000 000 000 000 000 000 000 000  14-0510   N/A  clutch hub holder
000 000 000 000 000 000 000 000  14-0511   N/A  case splitter (not in tool kit)
000 000 000 000 000 000 000 000  14-0514   N/A  variator dis. disc. (not in kit)

000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description
000 000 132 036 031 033 000 000  16-1005   $15  roller bearing open, piston Ø12-Ø15 x 15 late MO2,M1,M101,S5K2
000 000 075 000 000 000 000 000  16-1008   N/A  roller bearing inner, R crank Ø10-Ø14 x 10  for MO2
000 000 000 000 075 000 000 000  16-1019   N/A  roller bearing open, variator-clutch for M101
060 060 051 100 120 000 067 067  16-3004   N/A  rubber boot, spark plug cap
000 000 000 000 000 013 000 000  16-3006   N/A  rubber grommet, magneto int. coil for early S5K2
115 115 121 000 000 000 000 000  16-3008   N/A  rubber grommet, magneto for MO1, MO2
000 000 080 000 000 000 000 000  16-3010   N/A  rubber protector, start cable for MO2
000 000 000 000 000
055 000 000  16-3012   N/A  rubber, kickstart (use 16-3018)
000 000 000 000 000
000 000 000  16-3015   N/A  rubber block for S5K2
000 000 000 000 000
013 000 000  16-3017   N/A  rubber grommet, magneto for S5K2
000 000 000 000 000
055 000 000  16-3018   N/A  rubber, kickstart for S5K2
000 000 000 096 116 000 000 000  16-3022   N/A  rubber grommet, magneto for M1, M101
000 000 000 000 000 000 000 000  16-3023   N/A  rubber grommet, magneto for MO3
000 000 000 000 000 000 000 000  16-3024   N/A  nylon bushing, starter (use 16-3026)
000 000 
000 000 000 000 000 000  16-3026    $7  nylon bushing, starter Ø8 x Ø10 x 8 for late MO2
000 000 000 000 000 000 
000 000  16-3027   N/A  rubber, anti-vibration for S5R
000 000 000 000 000 000 055 0
55  16-3028   N/A  rubber, kickstart for S5T
000 000 000 000 000
000 000 000  16-3032   N/A  rubber grommet for ?? for S5K2
000 000 000 000 000 016 000 000  16-4001   N/A  gasket, cylinder base   Ø6 40×40 for S5K2
000 000 000 000 000 023 000 000  16-4005    $3  gasket, intake flange x Ø6-33-Ø14 = Min. 4240 for S5K2
035 035 034 051 053 030 030 030  16-4008    $1  gasket, oil drain plug x ring Ø8 x 14
000 000 000 000 000
078 000 000  16-4010   N/A  gasket, exhaust ring x ring Ø28 x 34 for S5K2
000 000 000 000 000 000 023 000  16-4011   N/A  gasket, intake flange x Ø6-36?-Ø19? for S5R
000 000 000 000 000 018 000 000  16-4018    $7  gasket, cylinder head x Ø6 40×40 for S5K2
000 000 000 000 000 003 000 000  16-4021    $9  gasket, case center   xxxxxxxxxxx  for S5K2
000 000 000 000 000 000 018 018  16-4022    $7  gasket, cylinder head x Ø6 50 x 50 for S5R (710077)
000 000 000 000 000 000 078 078  16-4024   N/A  gasket, exhaust flange Ø6-42?-Ø24? for S5R
037 037 032 049 000 000 000 000  16-4026    $4  gasket, oil filler plug xx ring Ø14×19 for MO1 ,MO2, M1
019 019 019 008 007 000 000 000  16-4030  $12  gasket, cylinder base   Ø6 46×46 for MO1, MO2, M1, M101
020 020 020 025 020 000 000 000  16-4031    $5  gasket, exhaust flange Ø5-36-Ø20 MO1, MO2, M1, M101
021 021 021 010 009 000 000 000  16-4032  $10  gasket, cylinder head   Ø6 46×46 for MO1, MO2, M1, M101 
022 022 022 000 000 000 000 000  16-4033    $8  gasket, case center   xxxxxxxxxxx  for MO1, MO2
023 023 000 000 000 000 000 000  16-4034  $10  gasket, clutch cover  xxxxxxxxxxx  for MO1
024 024 024 000 000 000 000 000  16-4035    $5  gasket, intake lower x Ø5-36 19×10 for MO1,MO2
025 025 025 000 000 000 000 000  16-4036    $3  gasket, intake upper x Ø8-36 19×10 for MO1,MO2
000 000 000 000 000 000 016 000  16-4080   N/A  gasket, cylinder base  Ø6 50×50 for S5R (710075)
000 000 000 000 000 009 009 000  16-4085  $12  gasket, clutch cover  xxxxxxxxxxx  for S5K2, S5R
000 000 000 000 020 000 000 000  16-4093   N/A  gasket, exhaust flange Ø5-36-Ø20 M101 (use 16-4031)
000 000 099 000 000 000 000 000  16-4101   N/A  gasket, starter cable x  ring Ø12?x18 for MO2
000 000 000
030 025 000 000 000  16-4103    $6  gasket, intake upper x  Ø6-44 16×15 for M1,M101
000 000 000
003 000 000 000 000  16-4104   N/A  gasket, case center   xxxxxxxxxxx  for M1, M1K
000 000 000
005 000 000 000 000  16-4105  $12  gasket, clutch cover   xxxxxxxxxxx  for M1, M1K
000 000 000
032 027 000 000 000  16-4106    $7  gasket, intake lower x  Ø6-44 30×22 for M1,M101
000 000 000 000 003 000 000 000  16-4108   N/A  gasket, case center   xxxxxxxxxxx  for M101
000 000 000 000 009 000 000 000  16-4111   N/A  gasket, cylinder head   Ø? 46 x 46 for M101 (use 16-4032)
000 000 000 000 000 000 000 018  16-4121   N/A  gasket, cylinder head   Ø? 50 x 50 for S5T
000 000 000 000 000 000 000 016  16-4122   N/A  gasket, cylinder base   Ø? 50 x 50 for S5T
000 000 000 000 000 000 000 010  16-4135   N/A  gasket, clutch cover  xxxxxxxxxxx  for S5T
000 000 000 000 000 000 000 003  16-4136   N/A  gasket,  case center  xxxxxxxxxxx  for S5T
000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description
000 000 
053 000 000 000 000 000  18-0001  $80  clutch drum with bushing for MO2
000 000 000 000 000 
059 000 000  18-1065   N/A  crankshaft starting gear for S5K2
000 000 000 000 000 058 000 000  18-1066   N/A  starting gear (use 18-1081)
000 000 000 000 000 
058 000 000  18-1081   N/A  starting gear 52 tooth? for S5K2
000 000 000 000 000 000 000 000  18-1143   N/A  main gear for M101
000 000 000 000 000 000 000 000  18-4016   N/A  m
000 000 000 000 000 000 000 000  18-4019   N/A  m
000 000 000 000 000 000 000 000  18-4024   N/A  m
000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description
075 075 000 066 000 000 000 000  19-0004   $15  lever, start rear-pull Ø12 for MO, MO1, M1
000 000 000 000 000 000 000 000 19-0004M N/A  lever, start side-pull Ø12 for Malaguti MO
000 000 000 000 000 051 051 000  19-0006   N/A  lever, kick start for S5K2
000 000 000 000 000 000 000 051  19-1029   N/A  lever, kick start for S5T
000 000 000 000 000 000 000 000  19-1046   N/A  lever, engage for M101

000MO1 000 M1 000 S5K2 00  S5T
.MO000 MO200 M101 000 S5R 000   Morini#  price   click Piston to see pistons offered, by size and style

000 000 000 000 000 035 000 000  23-0101 Piston piston assy    S5K2 cast iron cylinder 38.0
S5K2
000 000 000 000 000 035 000 000  23-0102   N/A 
piston assy    S5K2 cast iron cylinder 38.2 oversize
052 000 000 000 000 000 000 000  23-01xx Piston piston assy for iron cylinder non-reed 40.0 early MO
000 052 043 000 000 000 000 000  23-0125 Piston piston assy for alu. cylinder non-reed 40.4 MO1, MO2
000 052 043 000 000 000 000 000 23-0126/6 N/A  piston assy for alu. cylinder non-reed 40.6 1st oversize
000 052 043 000 000 000 000 000 23-0126/8 N/A  piston assy for alu. cylinder non-reed 40.8 2nd oversize
000 052 043 000 000 000 000 000 23-0126/0 N/A  piston assy for alu. cylinder non-reed 41.0 3rd oversize
000 052 043 000 000 000 000 000  23-0130 Piston piston assy for iron cylinder non-reed 40.4 MO1, MO2
000 052 043 000 000 000 000 000 23-0131/6 N/A  piston assy for iron cylinder non-reed 40.6 1st oversize
000 052 043 000 000 000 000 000 23-0131/8 N/A  piston assy for iron cylinder non-reed 40.8 2nd oversize
000 000 000 000 000 000 035 035  23-0133 Piston piston assy for iron or alum non-reed 39.0 S5R, S5T
000 000 000 044 048 000 000 000  23-0134   N/A  piston assy for alu. cylinder reed type 40.4 M1, M101
000 000 000 044 048 000 000 000 23-0135/6 N/A  piston assy for alu. cylinder reed type 40.6 1st oversize
000 000 000 044 048 000 000 000 23-0135/8 N/A  piston assy for alu. cylinder reed type 40.8 2nd oversize
000 000 000 044 048 000 000 000  23-0136 Piston piston assy for iron cylinder reed type 40.4 M1, M101
000 000 000 044 048 000 000 000 23-0137/6 N/A  piston assy for iron cylinder reed type 40.6 1st oversize
000 000 000 044 048 000 000 000 23-0137/8 N/A  piston assy for iron cylinder reed type 40.8 2nd oversize
000 000 000 044 048 000 000 000 23-0137/0 N/A  piston assy for iron cylinder reed type 41.0 3rd oversize
000 000 000 000 000 000 000 000 23-0186/A N/A  piston assy 38.95 for all-alum. cylind. 39.0 S6E

000 000 
072 000 000 000 000 000  23-1027   N/A  spiral pawl, starter for MO2
000 000 000 000 000
052 000 000  23-1039   N/A  kickstart lever retaining pin for S5K2
000 000 000 000
024 000 000 000  23-1051   N/A  intake manifold, center-type Ø9 x Ø18 for M1, M101 (1.0hp)
000 000 105 000 000 000 000 000  23-2501  $15  drive sprocket 13T tapered, keyed for MO1/MO2
093 093 000 000 000 000 000 000  23-2506  $15  drive sprocket 12T tapered, keyed for MO1/MO2
099 099 108 000 000 000 000 000  23-2507   N/A  pedal sprocket 19T for MO1, MO2
000 000 000 000 000
065 065 000  23-2508  $15  drive sprocket 11T flat-sided thin for S5K2, S5R
000 000 000
080 000 000 000 000  23-2534   N/A  drive sprocket 13T flat-sided thick for M1
000 000 000
084 000 000 000 000  23-2543   N/A  pedal sprocket 17T for M1
000 000 000 000
105 000 000 000  23-2547   N/A  pedal sprocket ??T for M101
000 000 000 000 090 000 000 000  23-2550  $15  drive sprocket 10T flat-sided thick for M101
000 000 000 000 000 000 000 000  23-2551  $15  drive sprocket 11T flat-sided thick for ?? fits M101
000 000 000 000 000 000 000 000  23-2561  $15  drive sprocket 13T flat-sided thick for ?? fits M101
000 000 000 000 000 000 000 000  23-2580  $15  drive sprocket 14T splined for S5T?, S5E?, S5N?
000 000 000 016 013 019 000 000  23-5001    $4  stud, cylinder M6 x 108 for MO1, MO2, M1, M101, S5K2
015 015 015 000 000 000 000 000  23-5002    $4  stud, cylinder M6 x 108 (use 23-5001)
011 011 011 000 000 000 000 000  23-5003    $7  stud, intake   M5 x 50 for MO1, MO2
000 000 000 000 000 000 000 000  23-5004  N/A  stud, cylinder M? x ??? for 6-speed
013 013 013 019 016 000 000 000  23-5014    $3  stud, exhaust M5 x 30 for MO1, MO2, M1
000 000 000 022 019 000 000 000  23-5021    $3  stud, intake   M6 x 30  for M1, M101
061 061 052 000 119 000 000 000  23-7001    $5  spark plug cap (use H-82)
107 107 115 091 000 000 000 000 23-7002D 434R pedal crank, right “D” 4¾ x 1¼” MO1,MO2,M1,M101
108 108 116 091 000 000 000 000 23-7002S 434L pedal crank,  left  “S”  4¾ x 1¼” MO1,MO2,M1,M101
000 000 000 000 000
014 000 000  23-7006  N/A  plate, sprocket guard for S5K2
000 000 000 099 000 076 000 000  23-7020    $5  spark plug cap (use 23-7001)
000 000 
073 000 000 000 000 000  23-7026  N/A  plate, starter spiral anchor, 3-hole for MO2
000 000 000 000 000 000 000 000  23-7029  N/A  disc, rubber
000 000 000 000
073 000 000 000  23-7053  N/A  thrust pad, clutch for M101
000 000 000 000 000
000 000 015  23-7056  N/A  plate, sprocket guard for S5T
000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description
083 083 000 000 000 000 000 000  25-0001   N/A  drive gear for MO1
000 000 000 000 000 022 000 000  25-1001   N/A  intake manifold, short-type Ø12 x Ø16 for S5K2
027 027 027 000 000 000 000 000  25-1005   $35  intake manifold, right-type Ø13 x Ø16 for MO1, MO2
027 027 027 000 000 000 000 000  25-1014   $25  intake manifold, right-type Ø12 x Ø16 MO1, MO2 (1.5hp)
000 000 000 000 000 000 000 000  25-1027   N/A  intake manifold, short-type Ø18 x Ø24? for S5R
000 000 000 000 000 000 000 000  25-1038   N/A  intake manifold, short-type   Ø9 x Ø24? for S5R (1.5?hp)
027 027 027 000 000 000 000 000  25-1048   N/A  intake manifold, right-type   Ø9 x Ø16 MO1, MO2 (1.0hp)
000 000 000
028 023 000 000 000  25-1050   $35  intake manifold, right-type Ø14 x Ø18 for M1, M101
000 000 000
029 024 000 000 000  25-1051   $32  intake manifold, front-type Ø14 x Ø18 for M1, M101
000 000 000
000 000 000 000 000  25-1052   N/A  intake manifold, front-type Ø13 x Ø16 MO1,MO2 Sebring
000 000 000 028 023 000 000 000  25-1055   N/A  intake manifold, front-type   Ø9 x Ø18 M1, M101 (1.0hp)
000 000 000 000 000 000 000 
022  25-1059   N/A  intake manifold, short-type Ø14 x Ø18 for S5T
017 017 017 018 014 021 000 000  25-4001   25¢  washer, cylinder head M6
000 000 000 024 014 000 000 000  25-4001
 cont.  washer, intake manifold M6
000 000 000 000 000 000 000 000  25-4002   N/A  washer,
000 000 000 000 000 000 000 000  25-4005   N/A  washer,
000 000 000 000 000 000 000 000  25-4007   N/A  washer,
000 000 000 000 000 000 000 000  25-4008   N/A  washer,
000 000 000 000 000 000 000 000  25-4010   N/A  washer,
000 000 000 000 000 000 000 000  25-4012   N/A  washer,
000 000 000 000 000 000 000 000  25-4013   N/A  washer,
000 000 000 000 000 000 000 000  25-4017   N/A  washer,
000 000 000 000 000 000 000 000  25-4018   N/A  washer,
000 000 000 000 000 000 000 000  25-4023   N/A  washer,
000 000 000 000 000 000 000 000  25-4026   N/A  washer,
000 000 000 000 000 000 000 000  25-4028   N/A  washer,
000 000 000 000 000 000 000 000  25-4030   N/A  washer,
000 000 000 000 000 000 000 000  25-4031   N/A  washer,
000 000 000 000 000 000 000 000  25-4034   N/A  washer,
000 000 000 000 000 000 000 000  25-4038   N/A  washer,
088 088 101 074 000 000 000 000  25-4040    $7   washer shim, prim. & sec. shaft for MO1, MO2, M1
000 000 000 000 000 000 000 000  25-4041   N/A  washer,
000 000 000 000 000 000 000 000  25-4043   N/A  washer,
000 000 000 000 000 000 000 000  25-4047   N/A  washer,
000 000 000 000 000 000 000 000  25-4055   N/A  washer,,
000 000 000 000 000 000 000 000  25-4070   N/A  washer,
000 000 000 000 000 000 000 000  25-4072   N/A  washer,
000 000 000 000 000 000 000 000  25-4073   N/A  washer,
000 000 000 000 000 000 000 000  25-4074   N/A  washer,
000 000 000 000 000 000 000 000  25-4075   N/A  washer,
000 000 000 000 000 000 000 000  25-4076   N/A  washer,
000 000 000 000 000 000 000 000  25-4077   N/A  washer,
000 000 000 000 000 000 000 000  25-4078   N/A  washer,
000 000 000 000 000 000 000 000  25-4079   N/A  washer,
067 067 059 060 000 046 046 046  25-7002   N/A  clutch shoe pin Ø3 x 13.8

000MO1 000 M1 000 S5K2 00  S5T
.MO000 MO2 00 M101000 S5R 000   Morini#  price   click Rings to see rings offered, by size and style
000 000 000 000 000 000 000 000  26-0505   $25  seal set 2-17x35x8, 2-16x24x5, 15x24x5 for MO1, M1
000 000 000 000 000
000 000 000  26-0506  $18  seal set 2-17x35x8, 15x24x5 for S5K, S5K2, S5R, S5T
000 000 
000 000 000 000 000 000  26-0508  $25  seal set 17x35x8, 20x35x8, 2 – 16x24x5, 15x24x5 MO2
000 000 000 000
000 000 000 000  26-0514   N/A  seal set 2-17×35,2-16×24,15×24,19×24,13×19,6×15 M101
000 000 000 000 000 000 000 000  26-0606  $35  gasket set for MO1, MO2
000 000 000 000 000
000 000 000  26-0608  $35  gasket set for S5K2
000 000 000 
000 000 000 000 000  26-0611  $35  gasket set for M1
000 000 000 000
000 000 000 000  26-0612   N/A  gasket set for M101
000 000 000 000 000 000
000 000  26-0613   N/A  gasket set for S5R, S5T
000 000 000 000 000 036 000 000  26-1001 Rings piston ring 38.0 x 2.0 FG standard for S5K,K2, 50’s-60’s
000 000 000 000 000 036 000 000  26-1002   N/A  piston ring 38.2 x 2.0 FG oversize
000 000 000 000 000 000 
036 036  26-1003 Rings piston ring 39.0×2 L-type standard upper S5R, S5T
000 000 000 000 000 000 000 000  26-1004   N/A  piston ring 39.4×2 L-type oversize upper

000 000 000 000 000 000 000 000  26-1005 Rings piston ring 40.0×2 L-type? standard upper  MO4, MO5? 
000 000 000 000 000 000 000 000  26-1016   N/A  piston ring 40.0 x 1.5 GI? standard lower for MO4,MO5? 
054 054 000 000 000 000 000 000  26-1005   N/A  piston ring 40.0 x 1.5 GI? standard for MO, early MO1

000 000 000 000 000 000 082 082  26-1044 Rings piston ring 39.0 x 1.5 FG standard lower S5R, S5T
000 054 044 045 049 000 000 000  26-1045 Rings piston ring 40.4 x 1.5 GI standard for MO1, MO2, M1
000 054 044 045 049 000 000 000 26-1046/6 N/A  piston ring 40.6 x 1.5 GI 1st oversize
000 054 044 045 049 000 000 000 26-1046/8 N/A  piston ring 40.8 x 1.5 GI 2nd oversize
000 000 000 000 000 000 000 000
 26-1060 Rings
 piston ring 39.0 x 1.0 GI standard for S5N, S5GS
000 000 000 000 000 000 000 000 26-1060/4 N/A  piston ring 39.4 x 1.0 GI 1st oversize
000 000 000 000 000 000 000 000 26-1060/8 N/A  piston ring 39.8 x 1.0 GI 2nd oversize
000 000 000 000 000 000 000 000  26-1110 Rings piston ring 44.5 x 1.0 GI standard for FM65

000 000 000 000 000 001 000 000
 
26-5012
   N/A  semi case, right for S5K2
001 001 000 000 000 000 000 000
 
26-5016
   N/A  semi case, right for MO1
002 002 007 000 000 000 000 000
 
26-5017
   N/A  semi case, left for MO1, MO2 
000 000 
001 000 000 000 000 000  26-5032   N/A  semi case, right for MO2
000 000 000 000 000
002 000 000  26-5053   N/A  semi case, left for S5K2
000 000 000 000 000 000 
001 000  26-5082   N/A  semi case, right for S5R
000 000 000 000 000 000 
002 000  26-5083   N/A  semi case, left for S5R
000 000 000
001 000 000 000 000  26-5086   N/A  semi case, right for M1
000 000 000
002 000 000 000 000  26-5087   N/A  semi case, left for M1
000 000 000 000
001 000 000 000  26-5095   N/A  semi case, right for M101
000 000 000 000
002 000 000 000  26-5096   N/A  semi case, left for M101
000 000 000 000 000 000 000
002  26-5139   N/A  semi case, left for S5T
000 000 000 000 000 000 000
001  26-5140   N/A  semi case, right for S5T
000 000 000 000 000 000 000
000  26-8001   N/A  s
000 000 000 000 000 000 000
000  26-8001   N/A  s
000 000 000 000 000 000 000
000  26-8014   N/A  s
000 000 000 000 000 000 000
000  26-8031   N/A  s
000 000 000 000 000 000 000
000  26-8035   N/A  s
000 000 000 000 000 000 000
000  26-8037   N/A  s
000 000 000 000 000 000 000
000  26-8038   N/A  s
000 000 000 000 000 000 000
000  26-8070   N/A  s
000 000 000 000 000 000 000
000  26-8071   N/A  s
000 000 000 000 000 000 000
000  26-8072   N/A  s
000 000 000 000 000 000 000
000  26-8073   N/A  s
000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description
068 068 000 000 000 000 000 000  27-0005   N/A  clutch drum, bushing & gear set for MO1
000 000 000 000 000 000 000 000  27-0005 $70-$90 clutch drum with bushing 11-5010
000 000 
031 000 000 000 000 000  27-0009  $10  dip stick filler plug for MO2
000 000 000 000 000
041 000 000  27-0011   N/A  clutch drum, bushing & gear set for S5K2
000 000 000 052 000 000 000 000  27-0043   N/A  clutch drum, bushing & gear set for M1
000 000 
066 000 000 000 000 000  27-1004  $12  starter clutch hub Ø28 hex28 for MO2
000 000 000
048 054 000 000 000  27-3007   N/A  oil filler plug
000 000 000 000 000 017 000
000  27-5006   N/A  cylinder head for S5K2
000 000 000 000 000 000 017 
000  27-5018   N/A  cylinder head for S5R
005 005 005 009 000 000 000
000  27-5019   $35  cylinder head for MO1, MO2, M1
000 000 000 000 008 000 000
000  27-5027   N/A  cylinder head for M101
000 000 000 000 000 000 000
017  27-5031   N/A  cylinder head for S5T
000 000 000 000 000 000 000
000  27-7047   N/A  spacer for M101

000MO1 000 M1 000 S5K2 00  S5T
 MO000 MO2 00 M101000 S5R 000   Morini#  price   description
000 000 000 000 000 073 000
000  29-0006   N/A  magneto ?????? ?????? ign gnd int  for early S5K2
000 000 000 000 000 073 000
000  29-0026   N/A  magneto Ducati ?????? ign gnd int  for S5K2
113 113 113 000 000 000 000
000  29-0034  Dansi magneto Dansi 101286 ign gnd int  for MO1, MO2
113 113 113 093 000 000 000
000  29-0045  Dansi magneto Dansi 101765 ign gnd ext for MO1, MO2, M1
000 000 000 093 113 000 000
000 29-0045/BBosch
magneto Bosch 0212-010-003  ext for M1, early M101

000 000 000 093 113 000 000
000  29-0053   CEV  magneto CEV 6420 xxx ign gnd ext for M101, late M1
000 000 000 000 000 000 000
000  29-0063   N/A  magneto Dansi 102362 ign gnd int  for ??

000 000 000 031 026 000 000 096  29-0501   N/A  reed valve for M1, M101, S5T
000 000 000 000 132 000 000 096  29-0502   N/A  variator front assy looks like Vespa Bravo for M101
000 000 000 000 000 000 000 000

 

 


2. 1950’s 50-70cc 2, 3-speed vertical-cylinder engines

 

1954 FBM P3 kick start
47.7 cc (38 x 42) 3-speed

1954 FBM P48 pedal start
47.7cc (38 x 42mm) 2-speed

The first Morini and Minarelli engines in 1956-58 were mostly the same as 1954-55 Moto FBM. These 1950’s models have very rounded head fins.

1956? Morini 2M 2-speed hand-grip-shift
47.7 cc, 38.0 mm bore, 42.0 stroke

 

 

 

 

 

 

 

 

 

1958? Morini 2M pedal start
47.7 cc (38 x 42) 2-speed hand-shift

 

 

 

 

 

 

 

 

1960 Morini 70cc 3-speed foot shift

 

 

 

 

 

 

 

 

 

 


3. 1960’s 50cc 1, 2, and 3-speed vertical-cylinder engines

1961 Morini F48 1-speed with pedals

50’s look: The 1956-61 Franco Morini F48 1-speed looks like it’s predecessor, the 1954-55 Moto FBM P48 Pettiroso 2-speed. It has the rounded 1950’s head fins. But the F48 has no shift cable attachments and no foot shifter. That distinguishes it from the others that change gears. Otherwise it looks the same.

It is not yet known if the 1961 Morini F48 was automatic clutch or manual clutch (or both). Both types have clutch cables, and look the same on the outside. By 1968 it was automatic.

New logo: The earliest photo of the hourglass logo was this F48 from 1961.

 

Newer fins: The 1962-66 50cc motors below have the 1960’s style head fins, taller in front and less rounded (except for fan-cooled types). The shape of the cooling fins and engine case can indicate the year range. Newer fins are bigger and more square, less rounded. Newer engine cases are less rounded. 

1962? Morini 3M
3-speed hand-shift, 48cc, 55km/h
Dellorto T4 12 S1 carburetor (12mm)
47.7 cc, 38.0 mm bore, 42.0 stroke

1962? Morini booklet

1962? Morini F48 (pedals)
1-speed manual clutch 48cc, 40km/h
Dellorto T4 9 S1 carburetor (9mm)
47.7 cc, 38.0 mm bore, 42.0 stroke

 

 

 

 

 

 

 

 

 

 

 

 

 

1963? Morini 3M (pedal version)
47.7 cc (38.0 x 42.0) 3-spd hand-shift
export version 1.4 hp 40 km/h
Dellorto SHA 14/9 carb (9mm)

1964 Morini 3M (pedal version)
47.7 cc (38.0 x 42.0) 3-sp hand-shift
normal version 2.2 hp. 50 km/h
Dellorto SHA 14/12 carb (12mm)

1964 Morini 3M series

 

 

 

 

 

 

 

 

 

 

 

 

1964 Morini 3M parts
export version 1.4 hp 40 km/h
47.7 cc (38.0 x 42.0 mm)

1964 Morini 3M parts
clutch and transmission
47.7 cc (38.0 x 42.0 mm)

1964 Morini 3CV parts
(parts different from 3M)
49.6 cc (38.8 x 42.0 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1965 Morini 3CV fan-cooled 
3-speed foot-shift, kick-start
49.6 cc (38.8 x 42.0 mm)

1968 Morini 3 MCL/SP 49cc 3.8hp kick-start
3-speed grip-shift, Dellorto racing type carb

 

 

 

 

 

 

 

 

 

 

 


4. 1960’s 50cc 4-speed vertical-cylinder engines

1967 Morini 4 CLS 49.6 cc 4 hp kick-start
4-speed foot-shift, fan-cooled sport bike

Some time in the mid-1960’s, starting with the 3CV, the bore increased from 38.0 to 38.8mm. The piston and rings got bigger, but the rings also got thinner.

1969 Morini 4 MP/S Turbo
50cc 5 hp 4-speed foot-shift

1967 4 MP/S Turbo

 

 

 

 

 

 

 

 

1967? Morini 4 MP/S Turbo parts view
4-speed foot-shift kick-start
49.6 cc, 5 hp, 38.8 mm bore, 42.0 stroke

 

1972 Morini 4 MP/S 49.6 cc 3.5?hp 4-speed

 

 

 

 

 

 

 

 

 

 

 

 

 


5. 1970’s 50cc 1, 2-speed horizontal cylinder engines

It’s hard to find info about these. Like other Morini and Minarelli engines, the engine identity is concealed or replaced with the bike maker name. The bike maker flyers are the best source of official photos and information.

1968 Morini ??? horizontal cylinder
49.0 cc (40.0 x 39.0) 1-spd manual clutch, 7.5 cr
1970-type aluminum cylinder steel sleeve 40.0
normal version 1.4 hp. 40 km/h
Dellorto SHA 14/12 carburetor (12mm)

1968 Malaguti line

The first horizontal-cylinder Morini one-speed moped engines were not automatic. The 1968 Malaguti flyer shows this. The Dribbling model with horizontal cylinder says “monomarcia” (one speed), while the Nuovo Europino vertical cylinder model says “monomarcia a frizone automatico” (one speed automatic clutch).  

1970-type aluminum cylinder: The late 60’s and early 70’s horizontal aluminum cylinders with all-horizontal fins, have a standard bore of 40.0 mm. 

iron cylinder: These cylinders are cast iron, darker, heavier, with top and bottom fins vertical and side fins horizontal. From the front view, the fins resemble a very thick plus sign. This all-iron cylinder replaced the 1970-type iron-sleeved aluminum cylinder in the early 70’s. At first in the early 1970’s the iron cylinder had a 40.0 mm standard bore, so it would interchange with the 1970-type. Later in the mid-1970’s it had a 40.4 mm standard bore, so it would interchange with the 1977-type. But not all changed to 40.4 in the mid 70’s. Some remained 40.0 bore into the late 1970’s. Some late 1970’s owners manuals specified 40.0 mm bore: 1976 NVT Easy Rider ER1, ER2, 1977 Intramotor-Gloria Scout. Most others of this period specified 40.4 mm. 

1977-type aluminum cylinder: These were iron sleeve aluminum cylinders with bigger fins, thicker plus sign style. They were made from the early 1970’s to about 1980. Most have a 40.4 bore, but some might have been made with 40.0 bore. That is what is shown and stated in the manuals mentioned above. Maybe 1 out of 10 Morini 1977-type cylinders on US models are 40.0. About 9 out of 10 are 40.4.

 

1969? Morini Gyromat, horiz. cyl with pedals
49.0 cc (40.0 x 39.0) 1-speed automatic, 7.5 cr
1970-type aluminum cylinder steel sleeve 40.0
normal version 1.4 hp. 40 km/h (26 mph)
Dellorto SHA 14/12 carburetor (12mm)

Gyromat: In about 1969 a new series of engines began, called Gyromat. These were pedal-start horizontal-cylinder one-speed automatic clutch Franco Morini moped engines.

Convert: In the mid-1970’s Morini developed a two-speed automatic version of the Gyromat, called the Convert. A Morini Convert is the precursor of the Morini MO-2.

Gyrokick: In the mid-1970’s Morini produced a kick-start version of the Gyromat, called the Gyrokick. 

1972? Morini Gyromat
1-speed automatic, pedals
1970-type alum cylinder 40.0

1975? Morini Convert
2-speed automatic, pedals
iron cylinder 40.0 or 40.4

 

 

 

 

 

 

 

1973? Malaguti Duomatic
same as Morini Convert
1970-type alum cylinder 40.0

1972? Itom Automatic
same as Morini Gyromat
1970-type alum cylinder 40.0

1976? Morini Gyrokick  horiz. cyl, kick-start
49.9cc (40.4 x 39.0) 1-speed automatic, 7.5 cr
1977-type aluminum cylinder steel sleeve 40.4

 

 

 

 

 

 

 

 

1976 Morini Gyromat MO1
iron cylinder 40.0 or 40.4

1978 Morini Gyromat MO1
1977-type alum cylinder 40.4

 

1978 Morini MO1
1977-type alum cylinder 40.4

 

 

 

 

 

 

 

 

 

 

 

 

Morini MO and MO1

 

 

 

 

MO1 clutch

MO1 clutch

MO1 clutch

MO1 clutch

 

 

 

 

 

 

 

MO1 clutch

MO1 clutch

MO1 clutch

MO1 clutch

 

 

 

 

 

 

 

MO1 clutch

Morini Pistons Nov 2013

 

 

 

 

 

 

 

 

 

 

 

 

Morini MO-1 start cable versions

 

 

 

 

 

 

 

 

 

 

 

Morini MO2

 

 

 

 

1975? Morini MO4 horiz. 4-speed foot-shift
49.0 cc (40.0 x 39.0) 1-speed automatic,
iron cylinder 40.0 or 40.4 bore

1970 Morini MO4 horizontal 4-speed on Cimatti Mini Chic
49.0 cc (40.0 x 39.0) 1-speed automatic, foot-shift,
1970-type aluminum cylinder steel sleeve 40.0 bore
Dellorto SHB 18/15 carburetor (15mm)
Dansi magneto ⇐ MSL 168 7936B/63

 

 

 

 

 

 

 

 

 

 

 

 


6. 1970’s 50cc 1-speed vertical cylinder engines

1968?-72? Morini S5K, 1-speed automatic 47.7cc (38.0 x 42.0)
from 1972 Indian JC5A, MM5A Parts Manual

S5K: The 1968? to 1972? Morini S5K had the same cast-iron cylinder and piston and head from the early 1960’s. The connecting rod had a brass bushing for the piston pin. The right-side kick start operates backward.  

1970 Morini S5K  1-speed automatic
backward kick, 47.7 cc, 2.2 hp or 1.4 hp
38.0 bore, 42.0 stroke, 6.5 comp. ratio

 

 

 

 

 

 

 

 

 

 

 

MF logo: The above logo says MF (Morini Franco), very stylized, and very 70’s, all straight lines.

S5K2: The 1972? to 1978? Morini S5K2 has improvements over the S5K. It has a needle bearing for the piston pin, instead of a brass bushing. It has a right-side kick start lever that operates forward, with an external return spring and improved mechanism.

Manufacturers that have used this 1970’s S5 engine, or the 1980’s to late 1990’s S5 versions, are as follows: Italjet/Indian, Malaguti, LEM, KTM, Husqvarna, DBM, Young Rider plus many others.

1974 Morini S5K2 1-speed 
47.7 cc automatic, forward kick
38.0 bore, 42.0 stroke, 6.5 cr
normal version 2.2 hp. 50 km/h
Dellorto SHA 14/12 carb (12mm)

1972?-78? Morini S5K2, 1-speed automatic 47.7cc (38.0 x 42.0)
from 1974? Italjet M5A Parts Manual with 1978 late items added

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1974 Morini S5K2 1-speed 
47.7 cc automatic, forward kick
38.0 bore, 42.0 stroke, 6.5 cr
slow version 1.4 hp. 40 km/h
Dellorto SHA 14/9 carb (9mm)

Left, 1972?-78? Morini S5K2
Mid 1969-79 Minarelli V1 1hp 
Mid 1951-55 FBM P48, P2, P3
Mid 1956-68? Morini F1, P3 Right, 1972-78 Sachs 504
All are 38mm and interchange.

 

Sachs design: The S5K2 piston is an old design used by Morini and Minarelli since before their beginnings. It is 38.0mm diameter, very tall (22mm) above the wrist pin (12mm) and short below (17mm). But why are these early Italian 50cc pistons the same dimensions and design as German pistons made by Sachs?

In the early 1950’s Vittorio Minarelli visited Fichtel and Sachs in Austria to learn about moped engines. When Minarelli returned he began building engines, along with partner Franco Morini, at FBM in the 1950’s. The Italian engineers used many of German engineer Ernst Sachs production methods and knowledge, like casting and metallurgy, and design principles, like bore and stroke, port timing, sizes and thicknesses, geometry, etc.

 

 

 

 

 

1979 Morini S5E

Morini S5E and S5N, 1-speed automatic 49.6cc (39.0 x 41.5)

 

 

 

 

 

 

 

S5E, S5R piston 23-0133D

 

 

 

 

 

 

 

1978 Morini S5R “radiale” engine
49.6 cc 1-speed automatic, aluminum cylinder
39.0 mm bore, 41.5 mm stroke, 9.0 comp ratio
5.0 horsepower, Dellorto SHB 19/19 carb

 

S5E: In the late 1970’s the S5E “Electronic” replaced the S5K2. It had an electronic ignition system instead of points ignition system. The S5E still had a cast iron piston-port cylinder, but the fins were bigger and completely square, like a 70’s Volvo! The piston changed from a 1950’s design 38mm with two thick rectangular (regular) rings, to a late-70’s 39mm with upper L-type (Dykes) ring. The crankshaft changed from 42mm stroke to 41.5, and the piston pin small brass bushing became a bigger needle bearing. Other things changed, like the forward-kick lever became aluminum. But the rest of the S5E engine and transmission remained mostly the same as S5K2. This is apparent from the illustration. 

S5R: In the late 1970’s the S5R “Radiale” was a sport version of the S5E. It had a piston-port aluminum cylinder with very big fins and a distinctive radial-fin head.  The exhaust header pipe passed through the right side engine fins. It had a bigger carburetor and intake manifold than the S5E. Serious power for an 8-year-old, without any gear shifting!

 

 


7. 1980’s 50cc 1, 2-speed horizontal cylinder engines

M1: In 1979 Morini came out with the M1 engine, a one-speed with a case-type reed valve. The reed valve induction produced about 20-30% more torque. The result was acceleration about the same as a MO-2 two-speed, but at a much lower cost and complexity. So by about 1980, both the MO-1 and MO-2 were discontinued in favor of the M1.

Morini M1

 

 

 

 

M101: In 1981 the two-speed M101 came out, a variator-transmission belt-drive engine with a M1 top-end (cylinder, piston and head). The variable-ratio-pulley transmission resulted in increased acceleration over the fixed-ratio M1. The price increased and so did the weight and case length.

Morini M101

 

 

 

1983 – 1985 Morini MO3
3-speed cable-shift, kick-start

 

 

 

 

 

 

 

 

 

 

 


8. 1980’s 50cc 1-speed vertical cylinder engines

Morini S5N

Morini S5E, S5ET, S5NG, S5NG4

Morini 1980’s – 90’s S5 pistons

 

 

 

 

 

 

 

 

S5N: In the early 1980’s the S5N replaced the S5E. The S5N had an aluminum piston-port cylinder, lighter in color but with the same fins. The piston design changed from L-type upper ring to both rectangular thin 39 x 1.0. The thin rings made better compression at high rpm.

S5T: In the mid 1980’s the S5T replaced the S5N. The S5T had a reed valve in the cylinder, and much bigger cooling fins. With the reed valve the intake air mixture can flow through a window in the back side of the piston, and the cylinder can have additional transfer ports on the intake side. Those benefits outweigh the extra restriction of the reed valve.

Morini S5T, reed-valve cylinder

Morini S5T

 

 

 

 

 

 

 

 

 

 

 

 

 

 


9. 1990’s 50cc 1-speed horizontal cylinder engines

The Morini M1 was still in production in the 1990’s

 

 

 


10. 1990’s 50cc 1-speed vertical cylinder engines

Morini S5GS

Morini S5GS

S5GS: In the early 1990’s the S5GS replaced the S5T. It had larger cooling fins, larger carburetor, and a bigger reed valve with more reed petals, 4-reed instead of 2-reed.

Manufacturers which have used this engine include: Husqvarna, KTM (pre 2001), LEM, Rivara and DBM. The Husqvarna version of this engine was fitted with an O-ring head gasket & thicker base gasket in later years.