Engine dies when clutching.

Bottomfeeder

Bottomfeeder

New Member
Aloha fellow members! I need help figuring out why my 2 stroke engine won't idle. When coming to a stop, the motor would immediately stop when I apply the clutch and brake. It restarts with no problem and it happens after a cold start and while engine is warmed up.
 
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here's a pic of the bike
 
huh, that looks a lot like the huffy 'moon dog' I ride

anyway, it never hurts to go thru the whole cable/clutch adjust procedure set out in hundreds of threads here
 
crassius said:
huh, that looks a lot like the huffy 'moon dog' I ride

anyway, it never hurts to go thru the whole cable/clutch adjust procedure set out in hundreds of threads here
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It is a moondog, good eye. And thanks, I will go through the whole cable/clutch adjustment.
 
Having same problem. Seems clutch keep slipping. But if flower nut tightened it doesn't engage engine. Doesn't seem to respond to idle screw. Have to screw it all the way in damn near to get a little idle out of it. Before shutting off after about a minute of idling.
 
I've tightened the flower nut, checked clutch and throttle cable play, and idle screw. Engine still won't idle. Dies out as soon as I stop throttling.
 
When you ride it and pull clutch lever while rolling fast, does it also die? Also, if idle screw is all the way in, that usually means you are too rich and can drop the needle down one or two notches.
 
No, just when coming to stop because engine was still engaged. Due to clutch cover plate missing a bolt. So cover plate would push away from motor. I also saw I'm missing spring behind clutch plate. So when I engage clutch. Flower nut does spring away from plate as it would with the tension from spring behind it.
 
crassius said:
When you ride it and pull clutch lever while rolling fast, does it also die? Also, if idle screw is all the way in, that usually means you are too rich and can drop the needle down one or two notches.
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Yes, as soon as I ease up on the throttle, the engine dies. Even while coasting speeds.
 
T james said:
Having same problem. Seems clutch keep slipping. But if flower nut tightened it doesn't engage engine. Doesn't seem to respond to idle screw. Have to screw it all the way in damn near to get a little idle out of it. Before shutting off after about a minute of idling.
Click to expand...

easy to make a spring for clutch out of some old spring lying around, or buy one cheap - if idle screw is all the way in, that usually means you are way too rich and dropping needle should help
 
crassius said:
easy to make a spring for clutch out of some old spring lying around, or buy one cheap - if idle screw is all the way in, that usually means you are way too rich and dropping needle should help
Click to expand...
Ok, I'll try that. But I really think its something internally going on with clutch itself. Because the cam shaft arm has to go in further and further before engaging the clutch. And when I loosen up flower nut 2 spaces or more. The plate doesn't catch the gear enough to move the drive gear. Its a hesitant start, but too much slipping to start. As soon as I tighten flower nut 1 more notch. It starts no problem. But is so tight the push pin barely pushes out the flower nut. And at this point the cam shaft arm is so far in (facing towards bicycle chain side) it has about a 1/4 inch of a gap. Between the piece that guides the wire to cam shaft arm.
 
T james said:
No, just when coming to stop because engine was still engaged. Due to clutch cover plate missing a bolt. So cover plate would push away from motor. I also saw I'm missing spring behind clutch plate. So when I engage clutch. Flower nut does spring away from plate as it would with the tension from spring behind it.
Click to expand...
This is your problem, the missing bolt. You should keep your questions in the thread you started, it can get confusing for those trying to help.
 
T james said:
Ok, I'll try that. But I really think its something internally going on with clutch itself. Because the cam shaft arm has to go in further and further before engaging the clutch. And when I loosen up flower nut 2 spaces or more. The plate doesn't catch the gear enough to move the drive gear. Its a hesitant start, but too much slipping to start. As soon as I tighten flower nut 1 more notch. It starts no problem. But is so tight the push pin barely pushes out the flower nut. And at this point the cam shaft arm is so far in (facing towards bicycle chain side) it has about a 1/4 inch of a gap. Between the piece that guides the wire to cam shaft arm.
Click to expand...

In your case, I'd first put the outer pressure plate across my vise, put about a 17mm or so socket over the hole, and give it a good smack to bell it out a bit more under the flower nut - this can often give more clutch grab - if that doesn't do it, then read some threads about adjusting internal spring on clutch shaft
 
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