Take a look at this Minarelli front sprocket I took off a parts engine. I don't even understand how it kept running long enough to get that worn.
Somebody loved riding that thing. Damn!
Bought my nephew a cool Yamaha trail master with the same problem. Guy said it was the transmission. Always jerked bad when you accelerated. "I don't know what happened, it used to be much faster?"
flip it around and re use. ...jk
This is what happens when you don't have a straight chain line or your chain is way way too loose.
i wonder how many chains they went thru?
PMCS....Preventative Maintenance Checks and Services.
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