2004 Poalaris MSX110, MSX150 PWC Original Service Manual, Page 83Get this manual
ENGINE DISASSEMBLYASSEMBLY Engine Disassembly Process
33Remove the balance shaft from the crankcaseRemove the PTO crankshaft case seal and discardRemove the piston lower rod cap bolts(Photo R) 34Carefully push each piston through and out of the crankcaseMatch each rod cap with its corresponding connecting rod(Photo U) NOTE: The connecting rod caps are "cracked" during manufacture creating unique mating surface between the connecting rod and capAlways verify that the lower cap matches the connecting rod35Always keep the connecting rod plain bearings, rod caps, and bolts with the piston assembly the engine was manufactured withPHOTO CRACKED MATING SURFACE