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Old 09-02-2005 | 06:36 PM
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impactiq
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From: genoa, IL
Default RE: Set-up for YS 61 R?
The best RPM range for this engine is 10,500 on the ground. YS made this engine to go against the Hanno special. This engine has loads of low end power. I can not remember what the over all length of the pipe is.....but tune it for this RPM. Give a 12/12 a try too.
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