2000-2003 Honda TRX350 Rancher factory service manual, Page 127Get this manual
CYLINDERPISTON Clean carbon deposits from the ring grooves with ring that will be discardedNever use wire brush; it will scratch the groove
INSPECTION
CYLINDER Inspect the cylinder bore for scratch or wearMeasure the cylinder I.Dat three levels in an and axisTake the maximum reading to determine the cylinder wearSERVICE LIMIT: 78.60 mm (3.094 in) Calculate the cylinder-to-piston clearanceRefer to page 8-4 for measurement of the piston ODSERVICE LIMIT: 0.10 mm (0.004 in) Calculate the cylinder taper and out-of-round at three levels in an and axisTake the maximum reading to determine the taper and out-of-roundSERVICE LIMITS: Taper: 0.10 mm (0.004 in) Out-of-round: 0.10 mm (0.004 in) The cylinder must be rebored and an oversize piston fitted if the service limits are exceededThe four oversize pistons are available from 0.25 mm piston to 1.0 mm piston in intervals of 0.25 mm (0.010 in)The cylinder must be rebored so that the clearance for an oversize piston is 0.015 0.045 mm (0.0006 0.0018 in)Check the top of the cylinder for warpage with straight edge and feeler gauge across the studs and bolt holes as shownSERVICE LIMIT: 0.10 mm (0.004 in)