1985-1995 Polaris ATV and Light Utility Hauler Service Manual, Page 304Get this manual
ENGINES Magnum Engine DisassemblyInspection Valve Sealing Test 1Clean and dry the combustion chamber area2Pour small amount of clean, high flash point solvent into the intake port and check for leakage around each intake valveThe valve seats should hold fluid with no seepage3Repeat for exhaust valves by pouring fluid into exhaust portCylinderPiston Removal and Inspection Follow engine disassembly procedures to remove valve cover, camshaft and rocker arms, and cylinder head1Remove cam chain guide at front of cylinderLoosen all four oil pipe banjo bolts and then remove the bolts and eight sealing washersRemove the pipesLoosen hose clamps on coolant inlet hose and remove hose