2004-2005 Honda TRX450R Factory Sevice Manual, Page 168Get this manual
CYLINDERPISTON Me asu re the isto pin hol 1.0Take the axim um read ing determ ine the I.DSERVICE LIMIT: 21.03 mm (0.828 in)
Me asu re he pist on pi 0.0 at th ree poi ntsSERVICE LIMIT: 20.98 mm (0.826 in )
Calcul ate the piston-t o-piston pin clearanceSERVICE LIMIT: 0.04 mm (0.002 in)
CONNECTING ROD
Measure the con necting rod small end 1.0SERVICE UMIT: 1.04 mm (0.828 in )
Calculate the con necting red-to-piston pin clea r-