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Old 01-12-2009, 06:20 AM
Bikeguy Joe Bikeguy Joe is offline
Godfather of Motorized Bicycles
Join Date: Jan 2008
Location: up north now
Posts: 11,531
Default Re: Scratches in the bore

Bumping compression will increase power across the range.
Smoothing the casting left overs will help as well.

Neither will leave you with flat spots.
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