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Old 10-12-2009, 04:23 PM
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Junster Junster is offline
Motorized Bicycle Elite Member
Join Date: Jun 2009
Location: Washington St.
Posts: 446
Default Re: girlfriends bike. noise?loss of power?

I just had the same problem. For me it was one of the pins in the piston that keep the rings from rotating. It came loose and put a deep gouge in the cylinder wall. Just pull the head and look in there. Hope that's not the problem. GL
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