can somebody please tell me exactly at what rpm the power valves are supposed to kick in.............
the mechanic working on my bike is not too sure.........
il be grateful for any information with regards to this...........
he says it should remain closed till a certain rpm and then open.........
and right now its opening and closing as it feels like........
could this be due to faulty or weak electricals???
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nothin like a two stroke kick up the backside..
