2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 272Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 272

2Inspect the cylinder for pitting, scoring, scuffing, warpage, and corrosionIf marks are found, repair the surface using
soap and hot waterDry with compressed air; then immediately apply oil to the cylinder boreIf the bore is severely damaged
or gouged, replace the cylinder Water or parts-cleaning solvent must be used in conjunction with the wet-or-dry sandpaper
or damage to the sealing surface may result Inspecting Cam Chain Guide 1Inspect cam chain guide for cuts, tears, breaks,
or chips2If the chain guide is damaged, it must be replacedHoning Cylinder 1Using slide gauge and dial indicator or snap
gauge, measure the cylinder bore diameter in three locations from top to bottom and again from top to bottom at 90 from the
first measurements for total of six measurementsThe trueness (out-of-roundness) is the difference between the highest and
lowest readingMaximum trueness (out-of-roundness) must be 0.05 mm (0.002 in 4If any measurement exceeds the limit, hone the
cylinder and install an oversized piston or replace the cylinder NOTE: Oversized piston and rings are availableThe oversized