2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 77Get this manual
ACCESSIBLE COMPONENTS
The following components can be serviced or removed with the engine installed in the frame:&&&&& Flywheel AlternatorStator Starter MotorStarter Drive Cylinder Head Cylinder PistonRIngs Camshaft Rocker Arms Cam Chain and Sprockets Water PumpWater Pump Mechanical Seal