2001-2005 Honda TRX250EX Sportrax TRX250EX Factory Service Manual, Page 110Get this manual
CYLINDERPISTONCAMSHAFT Clean carbon deposits from the rmg grooves with a
Clean carbon deposits from he piston ring grooves
nng that will be
cardedNever use the wire brush; It will scratch the
INSPECTION
CYLINDER
Inspect the cylinder bore for wearMeasure the cylinder IDat three levels on the and YaxisTake the maximum reading to determine the cylinder
wearSERVICE LIMIT: 68.6 mm (2.70 inl Calculate the cylinder-ta-piston clea ran ceRefer to page 8-6 for measurement of the piston O.DSERVICE LIMIT: 0.10 mm (0.004 in)