Anyone got any ideas on why the chain on kids 90cc Chinese (no idea what brand) quad keeps jumping off . Hoped a change of swing arm bushes would cure it , but it is still happening . The only issue I can find is slight movement in the rear axle , kind of wobbly (back and forward) , could this cause a clinking noise and chain to jump off ? Will try to post a video once the kids stop harassing me , any help would be appreciated

Sorry posted in wrong section , computer noob aswell

 

i would think the chain or sprockets are warn out... or even wrong pitch of chain on the machine so it will ride up on the sprocket and eventually fall off