2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 193Get this manual
CYLINDERPISTON 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: 92.10 mm (3.626 in)
Calculate the cylinder-to-piston clearanceRefer to page 9-4 for measurement of the piston O.DSERVICE 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 0.25 mm (0.010 in) and 0.50 mm (0.020 in) oversize pistons are availableThe cylinder must be rebored so that the clearance for an oversize piston is 0.0150.045 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 shownBOTTOM MIDDLE TOP