2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 265Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 265

1Wash the valve cover in parts-cleaning solvent2Place the valve cover on the Surface Plate (pin 0644-016) covered with #400
Drive 3-234 Inspecting Oil Pump 3-234 Servicing Center Crankcase Components 3-234 Secondary Gears 3-234 Crankshaft Assembly
3-236 Countershaft 3-237 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 Servicing Top-Side Components NOTE: Whenever part is worn excessively, cracked,
or damaged in any way, replacement is necessary 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
1Using valve spring compressor, compress the valve springs and remove the valve cottersAccount for an upper spring retainer
VALVE ASSEMBLY 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