MOPED ARMY

Well a little help why it’s doing that would of been nice if you know what is wrong. Been reading everywhere and can figure it out

The clutch pads and starter clutches look good but I bought new ones anyways. When you spin the clutch side it just spins freely. When the clutch was on it did grab the belt but still nothing. When I spin the right side the engine turns over( piston moves ) I’m just baffled. There’s some pictures on one of the post.

Until there is sufficient speed in either the motor when running' or the pulley if starting, the clutch/variator assembly will rotate freely on the crankshaft. The clutch cover is fit with a taper fit to the crankshaft on the PTO side and should have a excellent grip on the PTO side of the shaft.

The magneto side of the shaft has the flywheel which contains the exciter magnets for the magneto as well as providing some weight to keep the motor rotating smoothly. This is firmly held in position by the Novi nut to the ignition cam. The ignition cam must have a excellent grip on the magnito side of the crankshaft in order to maintain correct ignition timing.

With the engine running, the PTO side of the engine drives the cover of the clutch, the clutch drives the variator via the 3 or 4 shoes on the periphery of the cover. When engine speed is high enough for the weight of the friction material on the shoes chases out by centrifugal force and contacts the bell of the clutch housing.

Starting the engine the pedals drive the rear wheel which drives the large pulley, if the pulley switch is in the 'Moteur' position (Velo position disconnects the small gear from the pulley) then the large pulley drives the variator side of the clutch. When the speed of the variator/clutch assembly is high enough for the weight of the starter arms the friction material will contact the inside of the periphery of the cover with sufficient force to turn the cover and rotate the crankshaft.

Dumb question, but is the engine switch on the engine mode, not pedal?

Yes for sure. Lol. Has spark turning over the other side. All new clutch pads and still pedal like crazy and the other side doesn’t move. First Moby for me and all ready hating them. I restore mopeds as a hobby

So its a weird question... The inner...part...should spin the crank? i believe? what I would do: make sure the variator is in place, circlips, etc. Make sure the belt lines up and the variator nut is tightened to correct torque, 18 ft lb. On the stator side, did you set the ignition timing correctly? often more than once. And Novi nut tightened, 30-36 ft lb. And lastly, no air leaks, good fuel delivery, and that nothing in electrics is causing anything.

How about a good close up picture of the clutch, if you replaced the arms and they are very free to move on their pivots there must be something else incorrect.

The rivets for the main clutch pads are backwards, should be installed from outside so that after you buck them good and tight you can blend them into the face. Right like this the poor starting pads are trying to grip at a surface with rounded blobs on then so it will be hard for them to grab well.

The main clutch pads also look pretty one for so may want to replace them as well. The stock rivet sizes are 3mm or 4mm depending on the holes in the cover.

Yes this is true.

If you spin the flywheel then it should spin the inner part of the Variator only. It sounds like the inner part of the Variator is not on the tapper. Even if you had the circlip messed up The Variator would still seat on the crank tapper.

Did you take the Variator apart and lube it?

If you spin the flywheel does it spin the Variator side of the crank? (edited)

This does not look good

I believe you are not grabbing to crank tapper on the Variator side.

Did you use a puller to remove the Variator cover or does it just slip off?

Post a video!

Are you using the decompress? The starter clutch system will not work without a decompression.

You need to clean the heck out of the well that is circled in the picture as well as the tapered part of the crank where it should be gripping. If there is grease on the taper of the shaft or the taper inside the well then the two components will not lock together. If they are not locked it will spin.

When I switch it it does go to bicycle mode and only that works and peddles much easier so I don’t think it’s that.

Cleaned everything and going to put it back together. The new starter clutch springs are real strong should they be ? Also is anything supposed to be in this hole