2004 Polaris Freedom, Virage, Genesis and MSX-140 Service Manual., Page 100Get this manual
ENGINECOOLING SYSTEMS Engine AssemblyAll Engines 10Lubricate main bearing holes with Polaris Premium Cycle engine oil and rotate crankshaft to distribute oil evenly
11Install one circlip in piston with gap facing upward or downwardVerify that clip is fully seated before proceedingCirclip Installation Tool PN 2870773