1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 180Get this manual
ENGINECOOLING AssemblyPolaris Engines 17 Lubricate main bearing oil holes with Polaris Premium Cycle engine oil and rotate crankshaft to distribute oil evenly
18 Remove Mag end base nuts and install new base gasketBe sure gasket surface is clean and free of nicks, burrs, or scratches
19 Install one C-c1ip in piston with gap facing up or downBe sure clip is fully seated in groove