CEV Magnetos

July 16, 2014

WelcoCEVme.  Most European-made mopeds have high quality C.E.V. electrical components, made in Italy since the 1920’s by Fratelli Pagani (Pagani Brothers). C.E.V. is a trade mark that stands for Costruzioni Elettromeccaniche Venegonesi. English translation: Constructions Electromechanical of the Venegonese people (from Venegono, Province of Varese, Northern Italy). CEV is now part of ZADI.

 


1. CEV Magneto Specifications and Applications

Listed in order of CEV model number on flywheel. Not for sale unless offered in the price list below.


CEV 6080 Demm 1965 Demm (internal spark coil, no brake light) 
flywheel rotor ??,


CEV 6418

CEV 6418

CEV 6418 Tomos A3 1986-88 Tomos A3 Bullet (VIN code 12)
CEV 6418 Tomos A3
1986-88 Tomos A3 Bullet TT (14)
CEV 6418 Tomos A3
1986-88 Tomos A3-01 Bullet (20)
anti-clockwise, M19x1 puller, M10x1 nut, M3.0 key, 12V 28W lights
flywheel rotor Ø80, xxxxxx stator plate Ø90, 3 screws, 3 wires
black = ignition, yellow = lights
blue = external ignition ground
points 04229 (M14, looks like right hand) condenser 07365 (M17)

During 1986 Tomos transitioned from CEV to Iskra (Yugoslavian-made Bosch-compatible) magnetos, but nothing else changed. The Golden Bullet still had a 75 watt 2-wire magneto with internal ignition ground, and an external solid state voltage regulator. The Bullet still had a 28 watt (later 50) 3-wire magneto with external ignition ground, and no external voltage regulator.


CEV 6420

CEV 6420 Morini M1 1985-90 Motomarina Sebring (1-speed case reed)

anti-clockwise, M19x1 puller, M8x1.25 nut, M2.5 key
flywheel rotor Ø80, 13471 stator plate Ø80, 2 screws, 3 wires
x red = ignition, black = lights, green = external ignition ground
6V 28/10W
 6 volt 28 watt main lights, 6 volt 10 watt brake light
points 04229 (M14, looks like right hand) condenser 07365 (M17)

US-model Morini moped engines first had Dansi 1976-79 (MO1 and MO2), then Dansi or Bosch, 1978-84 (M1), then CEV magnetos in 1985-90 (M1), approximately.


CEV 6436

CEV 6436 Tomos A3 1986-88 Tomos Golden Bullet (13), Golden Bullet TT (19)

anti-clockwise, M19x1 puller, M10x1 nut, M3.0 key, 12V 75W lights
flywheel rotor Ø80, xxxxxx stator plate Ø90, 3 screws, 2 wires, 3 coils
black = ignition, yellow = lights (external solid state voltage regulator)
points 04229 (M14, looks like right hand) condenser 07365 (M17)

Besides the bottom lighting coil there is an additional thin lighting coil on top, wired in series. The top ignition source coil is thinner, to make room for the additional lighting coil.

1986 was the debut of solid-state voltage regulation, where all the lights are powered by one generator wire. This eliminated the need for multiple lighting output wires and source coils. The generator makes enough watts for all the lights to be on at once. But most of the time some of the lights are turned off. Then the extra watts are absorbed by the regulator, and “wasted” by warming up the frame. So the lights always stay the same brightness, no matter how many are on or off. No more external ignition ground means the engine never looses spark because of the lights, like pre-1987 Tomos.


CEV 6852

Bianchi Avanti

CEV 6852 Bianchi Avanti

    clockwise, M19x1 puller, 
flywheel rotor
x red = ignition, black = lights, blue =
6V 

 

 


CEV 6857 chain saw no lights 
flywheel rotor ??,


CEV 6859

CEV 6859 Morini MO1 1967-75 Italjet Kit Kat, others

anti-clockwise, M19x1 puller, M8x1.25 nut. M2.5 key,
flywheel rotor Ø80, 13471 stator plate Ø80, 2 screws, 3 wires
black = ignition, yellow = lights, blue = external ignition ground
6V 28/10W
 6 volt 28 watt main lights, 6 volt 10 watt brake light
points 04229 (M14, looks like right hand) condenser 07365 (M17)

 

 


CEV 6861 early Minarelli V1

CEV 6861 Minarelli V1 1970’s from service manual photos

anti-clockwise, M19x1 puller, M10x1.25 nut. M3.0 key
flywheel rotor Ø80, 13373 stator plate Ø94, 3 screws, 3 wires
x red = ignition, black = lights, blue = external ignition ground

Same as 6940. For early to mid 1970’s Minarelli V1 with metal fan cover, 2 (not 3) cover base screws, 94mm 3-screw stator plate mounts. 

 


CEV 6876 Minarelli V1 1975-76 Carabela, Cimatti, others

anti-clockwise, M19x1 puller, M10x1.25 nut. M3.0 key
flywheel rotor Ø80, 13373 stator plate Ø94, 3 screws, 3 wires
x red = ignition, black = lights, blue = external ignition ground
6V 28/10W
 6 volt 28 watt main lights, 6 volt 10 watt brake light

For early to mid 1970’s Minarelli V1 with metal fan cover, 2 (not 3) cover base screws, 94mm 3-screw stator plate mounts. 

01 C6030 flywheel (rotor) (says 6876), xxx  1a M4x12 stator screw (3) M4x12
02 13061 small head screw (2) M4x10, xxx  013035 points (left hand, big post)
04 C6050 points adjustment cam, xx            07 07365 condenser (M17)
05 13514 coils screw (4) M4x22, xxxxx xxx  10  12192 felt,  12 13125 felt holder
09 04307 ignition source coil blue & copper  11 04308 lighting coil black wire
13 C6150 stator plate bare (says xxxxx) xx  14 C6160 stator assembly

This aluminum flywheel has the same 80mm ID, but a bigger OD. It was superseded by 6940, with smaller OD. That is why there is room for a bigger flywheel on Minarelli V1 engine cases. A lot of older bikes had bigger flywheels.

 


CEV 6932 Minarelli V1 1977-89 Cimatti, Testi, other Italian makes
CEV 6932 Minarelli V1 1977-89 General, Lazer, other Taiwan makes

xxx-clockwise, M19x1 puller, M10x1.25 nut, M3.0 key
flywheel rotor Ø80, 13471 stator plate Ø80, 2 screws, 3 wires
x red = ignition, black = lights, blue = external ignition ground
6V 28/10W 6 volt 28 watt main lights, 6 volt 10 watt brake light

For late 1970’s to late 1980’s Minarelli V1 with plastic fan cover, 3 (not 2) cover base screws, 80mm 2-screw stator plate mounts. 

CEV 6932 Magneto 80mm

CEV 6932

01 04212 flywheel (rotor) (says 6932), xxx  1a M4x12 stator screw (3) M4x12
02 13061 small head screw (2) M4x10, xxx  03 13494 lockwasher M4
04 04221 points (M18, like a left hand), xx   05 07365 condenser (M17)
06 13514 coils screw (4) M4x22, xxxxx xxx  07 13448 lubrication felt
08 04307 ignition source coil blue & copper  09 04308 lighting coil black wire
10 13471 stator plate bare (says 13471) xx  11 04266 stator assembly

 


CEV 6933 Garelli Noi 1975-86 Garelli Eureka, Sport, Rally Sport
CEV 6933 Garelli Noi
1975-86  others (horizontal cylinder)
CEV 6933 Demm 1976-79 Smily, Scout 1-speed 

anti-clockwise, M19x1 puller, M8 (70-76), M9 (77-86) nut, M2.0 key
flywheel rotor Ø80, 13471 stator plate Ø80, 2 screws, 3 wires
black = ignition, yellow = lights, blue = external ignition ground
6V 28/10W 6 volt 28 watt main lights, 6 volt 10 watt brake light

CEV 6933 Stator

CEV 6933

01 04271 flywheel (rotor) (says 6933), xxx  1a M4x12 stator screw (3) M4x12
02 13061 small head screw (2) M4x10, xxx  03 13494 lockwasher M4
04 04229 points (M14, like a right hand) xx  05 07365 condenser (M17)
06 13514 coils screw (4) M4x22, xxxxx xxx  07 13448 lubrication felt
08 04287 ignition source coil blue & copper  09 04288 lighting coil yellow wire
10 13471 stator plate bare (says 13471) xx  11 04272 stator assembly

 


CEV 6939 Garelli VIP 1975-86 Garelli Gulp, VIP (vertical cylinder)

xxx-clockwise, M19x1 puller, M10 nut, M2.5 key
flywheel rotor Ø80, 13373 stator plate Ø94, 3 screws, 3 wires
black = ignition, yellow = lights, blue = external ignition ground
6V 28/10W 6 volt 28 watt main lights, 6 volt 10 watt brake light

These crack at the points cam when over tightened. The flywheel center is weak, because the center tapered hole is wide, and the key groove is located where the outer cam surface is low. There isn’t enough thickness there to handle a large tightening torque.

01 F6939 flywheel (rotor) (says 6939), xxx  1a M4x12 stator screw (3) M4x12
02 13061 small head screw (2) M4x10, xxx  03 13494 lockwasher M4
04 04221 points (M18, like a left hand), xx   05 07365 condenser (M17)
06 13514 coils screw (4) M4x22, xxxxx xxx  07 13448 lubrication felt
08 04287 ignition source coil blue & copper  09 04288 lighting coil yellow wire
10 13471 stator plate bare (says 13471) xx  11 S6939 stator assembly


CEV 6940

CEV 6940 Minarelli V1 1976-77 Carabela, Gitane, others

anti-clockwise, M19x1 puller, M10x1.25 nut. M3.0 key
flywheel rotor Ø80, 13373 stator plate Ø94, 3 screws, 3 wires
x red = ignition, black = lights, blue = external ignition ground
6V 28/10W
 6 volt 28 watt main lights, 6 volt 10 watt brake light

For early to mid 1970’s Minarelli V1 with metal fan cover, 2 (not 3) cover base screws, 94mm 3-screw stator plate mounts. 

1 F6940 flywheel (rotor) (says 6940), xxx  1a M4x12 stator screw (3) M4x12
02 13061 small head screw (2) M4x10, xxx  03 13494 lockwasher M4
04 04221 points (M18, like a left hand), xx   05 07365 condenser (M17)
06 13514 coils screw (4) M4x22, xxxxx xxx  07 13448 lubrication felt
08 04307 ignition source coil blue & copper  09 04308 lighting coil black wire
10 13373 stator plate bare (says 13373) xx  11 S6940 stator assembly


CEV 6943

CEV 6943 Tomos A3 1986-91 Tomos (as a temporary substitute)

anti-clockwise, M26x1.5 puller, M10x1 nut, M3.0 key
flywheel rotor Ø90, xxxxxx stator plate Ø90, 3 screws, 3 wires
black = ignition, yellow = lights (external solid state voltage regulator)
12V 50W 12 volt 50 watt lights

This has the same dimensions and timing angles (key-to-cam, and key-to-magnet) as 6951, but more watts and volts.

This was not in any late 1980’s Tomos USA parts manual. It was on some bikes as a “random” substitute magneto, perhaps for when the normal Iskra 12V 75W magnetos were temporarily unavailable.

 


CEV 6948 Minarelli P4  mid-1970’s  from Minarelli P4 parts catalog

anti-clockwise, M26x1.5 puller, M10x1 nut, M3.0 key
flywheel rotor Ø90, xxxxxx stator plate Ø90, 3 screws, 3 wires
x red = ignition, black = lights, blue = external ignition ground


CEV 6949 Sachs 504/1 1975-79 KTM Foxi Deluxe

anti-clockwise, M22x1.5 puller, M8x1 nut, M2.0 key
flywheel rotor Ø80, 13471 stator plate Ø80, 2 screws, 3 wires
black = ignition, yellow = lights, blue = external ignition ground

6V 28/10W 6 volt 28 watt main lights, 6 volt 10 watt brake light

Most Sachs engines have Bosch magnetos. Some have Motoplat. This one has CEV.

01 F6949 flywheel (rotor) (says 6949), xxx  1a M4x12 stator screw (3) M4x12
02 13061 small head screw (2) M4x10, xxx  03 13494 lockwasher M4
04 04229 points (M14, like a right hand) xx  05 07365 condenser (M17)
06 13514 coils screw (4) M4x22, xxxxx xxx  07 13448 lubrication felt
08 04287 ignition source coil blue & copper  09 04288 lighting coil yellow wire
10 13471 stator plate bare (says 13471) xx  11 04272 stator assembly


CEV 6951 Tomos A3 1985-86 Tomos A3 Bullet (01, 02)
CEV 6951 Tomos A3 1985-86  A3 Silver Bullet (04, 05, 07, 08, 09)
CEV 6951 Tomos A3 1985-86  A3 Golden Bullet (11)
anti-clockwise, M26x1.5 puller, M10x1 nut, M3.0 key
flywheel rotor Ø90, 13085 stator plate Ø90, 3 screws, 3 wires
black = ignition, yellow = lights, blue = external ignition ground
6V 28/10W 6 volt 28 watt main lights, 6 volt 10 watt brake light

1974-82 Tomos A3 magnetos were Ducati Elettrotechnica 31.17.30.
1983-85 Tomos A3 magnetos were ZEM 31.17.30, identical to Ducati.
1985-86 Tomos A3 ones were CEV 6951, interchangeable with Ducati.

CEV 6951

 .

01 04351 flywheel (rotor) (says 6951),   1a M4x12 stator screw (3) M4x12
02 13061 small head screw (2) M4x10,   03 13494 lockwasher M4
04 04229 points (M14, like right hand)   5 07365 condenser (M17)
06 12192 felt,  7 13125 felt holder xxxx  08 13514 coils screw (4) M4x22
09 04359 ignition source coil blue & cop. 10 04360 lights coil yel. wire
11 13085 stator plate bare (says 13085) 12 04358 stator assembly

 


CEV 6952

CEV 6952 Rizzato 1975-77 Rizzato Califfo (1-speed vertical cylinder)

anti-clockwise, M19x1 puller, M8 nut, M2.5 key
flywheel rotor Ø80, 13373 stator plate Ø94, 3 screws, 3 wires
x red = ignition, black = lights, blue = external ignition ground

6V 28/10W 6 volt 28 watt main lights, 6 volt 10 watt brake light

01 F6952 flywheel (rotor) (says 6952), xxx  1a M4x12 stator screw (3) M4x12
02 13061 small head screw (2) M4x10, xxx  03 13494 lockwasher M4
04 04229 points (M14, like right hand), xx   05 07365 condenser (M17)
06 13514 coils screw (4) M4x22, xxxxx xxx  07 13448 lubrication felt
08 04307 ignition source coil blue & copper  09 04308 lighting coil black wire
10 13471 stator plate bare (says 13471) xx  11 S6952 stator assembly

 


2. CEV Magneto Parts Price List

There are many different CEV moped magnetos, but many parts interchange. There are 3 base plates 80mm 2-screw, 94mm 3-screw, and 90mm 3-screw. There are two flywheel inner diameters, 80 or 90mm. CEV points are left (clockwise) or right (anti-clockwise). Source coils are all wound the same, with 2 sizes, for either 80 or 90mm flywheels. Each source coil has 3 different part numbers, because the wire is different, not the coil itself. That is one of the deepest secrets of CEV.

The flywheels generally do not interchange because they can have different timing angles. The timing angles are 1) the angle between key groove and the egg-shaped points cam, and 2) the angle between the four magnets and the key groove. Also the key groove can have different widths, 2.0, 2.5, or 3.0mm.

It is very technical, but two flywheels with the same size and rotation can interchange if the flywheel is installed without the woodruff key, at the correct angle. French mopeds do not have woodruff keys. The key is more for convenience in servicing, rather than for preventing slippage.    

The flywheel-magnet-rotor model number identifies both the flywheel and the stator. Sometimes two flywheels can interchange because they are for the same engine, but with different stator versions.

Not all of the CEV part numbers are known. But the CEV part number is not necessary. Instead use the precise descriptions to specify the part.

The CEV part numbers came from a 1985 Marina Mobili Inc (MMI) price list and from the CEV section in their catalog-notebook. They were the biggest USA importer and distributor of CEV parts and other moped parts, independently of the bike brands. 

Most bike makers parts catalogs do not disclose the component makers part numbers. So much of this information was gathered from actual parts samples that came from known bike models. 

 


CEV # xxxx description xxx xxxx xxx(remarks)  new   good
or MM # xx description xxx xxxx xxx(remarks)  new   used
part # xxxx description xxx xxxxxxx (remarks)  price  price


CEV 6933 flywheel, 04272 stator assy

04266 stator assy 80×80 with clockwise points N/A   $210 for 6932…
04272 stator assy 80×80 anti-clockwise points N/A   $210 for 6933, 6949…
S6939 stator assy 80×94 with clockwise points N/A   $180 for 6939…
S6940 stator assy 80×94 with clockwise points N/A   $180 for 6940…

S6952 stator assy 80×94 anti-clockwise points AN/   $180 for 6952…
04358 stator assy 90×90 anti-clockwise points   N/A $1$$ for 6951…
F6931 flywheel Ø80 clockwise xxx  (says 6931)  N/A   $90 also for 6932
04212 flywheel Ø80 clockwise xxx  (says 6932)  N/A   $90 also for 6931
04271 flywheel Ø80 anti-clockwise (says 6933) N/A    $90
F6939 flywheel Ø80 clockwise xxx  (says 6939)  N/A $120
F6943 flywheel Ø90 anti-clockwise (says 6943) N /A  $110
F6940 flywheel Ø80 clockwise xxx (says 6940) N /A  $110
F6949 flywheel Ø80 anti-clockwise (says 6949) N /A  $110

04351 flywheel Ø90 anti-clockwise (says 6951) N /A   $95
F6952 flywheel Ø80 anti-clockwise (says 6952)  N/A

CEV Points can be either "Left" or "Right". CEV Left hand M18 is for clockwise rotation CEV Right hand M14 is for counter clockwise

CEV points can be “Left” or “Right”
Left hand M18 for clockwise rotation
Right hand M14 is for anti-clockwise

04221 points #M18 looks like a left hand, Ø4×4 $18
04229 points #M14 looks like right hand,  Ø4×4 $18
13035 points (early) left hand, big pivot Ø4.5×8 $18
13036 points (early) rht. hand, big pivot Ø4.5×8 N/A
13061 points & cond. screw small-head M4x10   $2      $2
13494 points & cond. screw washer M4 plain     25¢   25¢
07365 condenser M17 Ø18×25, 0.25 μF, flange  $18 these go bad with age
13694 condenser early M32 Ø18×25, no flange  $18
13448 lubrication felt for 13471, 13373, 13923   $2 substitute, shown below 
12192 lubrication felt for C6150, 13085 xxxx     N/A
13125 felt holder for plates C6150, 13085 xxx   N/A

 

 

 

 

 

 

13471 base plate Ø80 for 80 whl  (says 13471) N/A    $90
13373 base plate Ø94 for 80 whl  (says 13373) N/A    $50
13085 base plate Ø90 for 90 whl  (says 13085) N/A
13923 base plate Ø90 for 80 whl  (says 13923) N/A

13514 coil screw & washer M4 x 22 phillips xxx 50¢    50¢

CEV source coils, ignition on top, lighting below

04287 ignition coil for Ø80 flywheel, no wire x   $85   $65
04307 ignition coil for Ø80 whl, short blue wire  $85  $70
04354 ignition coil for Ø80 whl, long blue wire   $85   $70
04359 ignition coil for Ø90 flywheel, blue wire   N/A
04288 lighting coil for Ø80 flywheel, no wire x   $30   $25
04308 lighting coil for Ø80, short blk wire xxxx  $30
04355 lighting coil for Ø80 whl, long black wire  $30
04360 lighting coil for Ø90 wheel, yellow wire 5 N/A
06309 external ignition spark coil  (says 6309) $100  $70
06317 external ignition spark coil  (says 6317) $100  $70
06932 magneto-generator assembly (6932) xxx N/A $295
06933 magneto-generator assembly (6933) xxx N/A $295
06939 magneto-generator assembly (6939) xxx N/A $315
06940 magneto-generator assembly (6940) xxx N/A $295
06949 magneto-generator assembly (6949) xxx N/A $295
06951 magneto-generator assembly (6951) xxx N/A
06952 magneto-generator assembly (6952) xxx N/A