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Old 06-22-2008, 09:21 PM
Skyliner70cc Skyliner70cc is offline
Join Date: Mar 2008
Posts: 138
Default Re: Higher RPMs through reduced rotating mass?

Removing material to balance an engine is a great idea. However, removing material won't benefit much on top end because the port timing is already very conservative. I personally wouldn't waste the time or effort on a chinese engine.
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