2006-2009 Honda TRX250EX/TRX250X Service Manual, Page 134Get this manual

2006-2009 Honda TRX250EX/TRX250X Service Manual, Page 134

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CYLINDER HEADIVALVECAMSHAFT Ream the guides to remove any carbon build-up before measuring the guideInsert the reamer from the combustion chamber side of the head and always rotate the reamer clock-