I have a 2002 KX 125 and i was wondering if i should go with the suggested chain tension by the manual...i have a stock (12 tooth) front sproket and a non-stock (51 tooth) rear sproket. I set the bike up for what the manual suggested (60-70mm) of free play on the chain with the bike resting on the side stand, but it looks WAY to lose to me. Can anybody shed some light on my situation?