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ROTORACER

Need compression specs for 03 YZF450 ???

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Can anyone tell me the acceptable specs for the cylinder comperession on a 2003 YZF450 ? Thank you for any help.

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Cranking compression??? you want to know or the spec head compression. The head is a 12:1 conpression ratio. I'm not sure what the cranking compression is. I've never put a gague on it. LOTS!!! lol..

yz007f

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