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02-21-2014 04:45 PM  3 years agoPost 1
kruuuzn

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Traverse City, MI

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Is there much to be gained by matching and polishing the exhaust ports between the motor and pipe on a RC?

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02-21-2014 05:04 PM  3 years agoPost 2
fastflyer20

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N. Tonawanda, NY

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It never hurts to match and polishing does slow down carbon buildup. But the zenoahs don't have a flow issue like older two strokes, so don't expect much if any improvement.

Changing port timing does help shift the powerband since these originally were designed to turn much lower rpm's.

Tom
CAUTION - my posts are based on my experiences, yours may be different.

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