My daughters lt80 seems like the clutch slips under load but it's not a normal slip. It acts like the chain is jumping teeth but the chain and sprockets are new. Any suggestions? I checked the belt and it looks fine, no shavings.

 

But is the chain tight? If so, block the rear end up and spin the tires. Feel and listen for grinding in the gearbox (by front sprocket). Usually no gear problems but it can happen.
Providing all is well there, I'd service the clutchs to see if there is something wrong in there.
I'm still betting on the chain jumping.[img]i/expressions/face-icon-small-smile.gif[/img]

 

I installed a chain tensioner so the chain is tight. I will check the gear box for noise. Also... it's been hard to start lately, the carb is clean so I think it might be reeds.

 

Check the compression. [img]i/expressions/face-icon-small-smile.gif[/img]

 

The compression is 115lbs and there is no grinding in the gearbox when I spin the wheels.

 

Ok, the reed may be cracked but it sounds like you'll need to service the clutchs to check all in there. [img]i/expressions/face-icon-small-smile.gif[/img]

 

Thanks... when I have it apart... what mods do I do.

 

Leave 2 rollers out for a stock motor with a stock pipe. [img]i/expressions/face-icon-small-smile.gif[/img]