2006-2009 Honda TRX250EX/TRX250X Service Manual, Page 130Get this manual
CYLINDER HEADIVALVECAMSHAFT Measure each shaft 0.0SERVICE LIMIT: 11 .92 mm (0 .469 in)
Subtract each shaft 0.0from the corresponding arm 1.0to obtain the rocker arm-to-shaft clea ranceSERVICE LIMIT: 0.08 mm (0.003 in)
PUSH ROO
Check each push rod for wear or damageIf the push rod is worn or damaged, check the cam follower and camshaft
INSTALLATION
Coat new O-rings with engine oil and install them into the rocker arm shaft groovesApply molybdenum oil solution to the sliding su r-