2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 70Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 70

Table of Contents (Servicing Components) Servicing Top-Side Components 3-26 Valve Assembly 3-26 Piston Assembly 3-30 CylinderCylinder
excessive amount of the sealing surface or damage to the camshaft will resultAlways check camshaft clearance when resurfacing
the valve cover Servicing Top-Side Components NOTE: Whenever part is worn excessively, cracked, or damaged in any way, replacement
is necessary CAUTION Water or parts-cleaning solvent must be used in conjunction with the wet-or-dry sandpaper or damage
to the sealing surface may result VALVE ASSEMBLY Removing Valves NOTE: Keep all valves and valve components as setNote the
original location of each valve set for use during installationReturn each valve set to its original location during installation
When servicing valve assembly, inspect valve seats, valve stems, valve faces, and valve stem ends for pits, bum marks, or
other signs of abnormal wear NOTE: Whenever valve is out of tolerance, it must be replaced CleaningInspecting Valve Cover