engine noise. 88' blaster

islandbiker

New Member
Aug 14, 2010
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hi there i had a question for you guys. when i start my bike, at idle, there is a sort of grinding sound coming from the motor. i can feel it when i touch it. it goes away when i rev the motor or drive around. it only does it a low idle. any help would be greatly appreciated.
 
Check your balancer drive gear, they are a 3 piece gear & tend to come loose on their carrier pins, making a weird sounding vibration/grinding noise when idling.