Help! FINALLY got pretty much everything together...at least got to point of fussing with the clutch-and found that I can't disengage
it..hell,I can't even see how it works!..That little 'clutch arm'
only rotates a half-round rod that passes by a shaft.The shaft is all greased,so simple friction seems out,even if it were practical.
What seems practical to me would be if that rod would depress the shaft,and pushing the shaft would push a couple of clutchplates apart...BUT..that shaft doesn't move...not in my motor,anyway.
And taking the cogwheel coverplate on the right off doesn't seem to help,either...so,stuck...sure could use some advice... Vin

Hi Vin,
This is from the Bicycle Engine Installation Manual:

The clutch cable should run from the left handlebar lever down to the clutch cable stop located on the engine beneath the carburetor. Run the inner wire over to the clutch arm. Secure the wire with the brass wire stop. Trim excess inner wire and tuck to the side. The clutch cable should only have a small amount of free play. Remove excess slack.

Because the clutch is cable operated, if the cable is too loose or too tight the bike won’t start.

You have too much slack in the cable more than likely....pull it up TIGHT before you clamp the brass end on it. The arm rotates, causing the flat piece to act as a "cam to push the rod....that rests on a ball bearing that acts as a throwout bearing, allowing the rod to push the single dry plate clutch.

Hell all,
I'm new to this. Not sure if this is the right place to do this but, I have a clutch question as well.

When I pull the clutch lever in the small engine sprocket will not freely spin. Is this normal? In this position isn't the clutch dis-engaged?

Thanks

Hell all,
I'm new to this. Not sure if this is the right place to do this but, I have a clutch question as well.

When I pull the clutch lever in the small engine sprocket will not freely spin. Is this normal? In this position isn't the clutch dis-engaged?

Thanks

Hell all,
I'm new to this. Not sure if this is the right place to do this but, I have a clutch question as well.

When I pull the clutch lever in the small engine sprocket will not freely spin. Is this normal? In this position isn't the clutch dis-engaged?

Thanks

Yes.

I'm working on my clutch now too and it seems that no matter how hard I press the center shaft in the middle of the gear it won't move in to disengage the engine. Is there some type of adjustment on this?, because if I can't move it with tools, it's never going to move with the little pressure applied by the cable.

The secret is called "leverage". You can't really push the rod into the sprocket with your hand, and there is no reason to try....the pivoting action of the flat on the clutch arm is what makes enough force to push the rod.