2003 Polaris MSX 140 Personal Watercraft Service Manual, Page 62Get this manual
EngineCooling W120HO- DFI Engine Disassembly 7Remove starter driveA thrust washer is located on each endInspect gear teeth for wear, cracks or damageHold drive body and rotate drive gear to check operation of drive assemblyThe drive gear must slide smoothly outward without bindingInspect bushing in starter housing as outlined for on page 3.23