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Old 02-18-2011, 01:03 PM
dadsvtechonda's Avatar
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Default 2008 crf250r valve specs

anyone know the factory valve specs???
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Old 02-18-2011, 08:32 PM
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INTAKE = 0.005 +/- 0.001 inch. EXHAUST = 0.011 +/- 0.001. The exhaust valves work best at 0.010 inch. The Admin Woody_383 has made a list of valve specs for most bikes out there for your future reference, if you need anymore.
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