Screeching noise

[boogerballs]

Ok, so I've got my 48cc mounted and running. It accelerates fine but as soon as I let off the gas it makes this horrible screeching noise. The clutch is engaged so I don't understand it. It "sounds" like it is slipping but doesn't feel like it is. Everything "feels" fine. A very annoying sound, that. Any ideas?

[Pablo]

Could be clutch gears chewing on clutch case. Remove cover and ride.

[boogerballs]

Nope, that wasn't it. Nor was the noise coming from the little idler pulley. I think the noise sounds like it is coming from inside the engine.
I took off the clutch cover and didn't see any shavings at all. There was some clutch friction material (I'm guessing). I left it off for some runs down the street and the noise was still there. Then I lubricated the idler pulley and it still didn't change the sound.

[Pablo]

Inside the engine? So it follows the engine RPM? Under load or just sitting there revving?

[boogerballs]

The noise only occurs when coasting with no gas on and clutch engaged or under decceleration.

[Pablo]

Have you greased your clutch gears? Rod ball? And little clutch bearings?

[boogerballs]

If you mean the large gear meshing with the small gear on the crank, yes. Yes on the rod ball as well. What is the little clutch bearing? Haven't heard of that one. By the way, thanks Pablo, for the help.

[Pablo]

Remove your outer clutch plate and there should be 3 small small holes about half way between the center and the teeth. This is where you can grease the little bearings....some engines have this access, some don't I'm starting to believe........

[misteright1_99]

Yea your right Pablo cause mine doesnt. I have a Grubee 48cc roundhead Spitfire, and there a no holes just the alignment pins for clutch plate. Would adding grease from the clutch cable adjustment hole get to ball bearings in clutch?

[Pablo]

I doubt it.....I'm running out of ideas!

Norm!!!!!