2004 Poalaris MSX110, MSX150 PWC Original Service Manual, Page 111Get this manual
ENGINE DISASSEMBLYASSEMBLY Engine Assembly
21Apply generous amount of engine oil to the crankshaft end and roller bearings22Install the roller bearing, starting gear, and flywheel key into end of crankshaft23Install the flywheel on to the crankshaftVerify flywheel fits over key24Apply Loctitet 262 to flywheel bolt, and install