2004 Poalaris MSX110, MSX150 PWC Original Service Manual, Page 81Get this manual
ENGINE DISASSEMBLYASSEMBLY Engine Disassembly Process
24Rotate the engine assembly 180_ so that the valve train is down, facing the floorUsing the hand crank, crank the timing chain out of the engine
25With the timing chain removed from the engine, the crankcase can be split in twoTo begin, loosen and remove the four case bolts located in the oil sump gallery(Photo O)