When changing the seals of the motor where the spark plugs go, my dad took the valves off to put on the new seals, one of the 4 bolts that holds the motor valves down broke off, and half of the bolt is stuck. so i dont know if this is contributing to the problem of shaking while stopped or jerking while accelerating? Please help.
Feb 29, 2012 at 11:20 PM

