2000 Yamaha YFM400FWA(M) Factory Service workshop Manual, Page 178Get this manual
CRANKCASE CRANKCASE STARTER MOTOR, TIMING CHAIN AND OIL FILTER
Job namePart name Starter motor, timing chain and oil filter removal Engine assembly Cylinder head Cylinder and piston Recoil starter and CDI rotor Primary and secondary sheaves Clutch carrier assembly Oil pump drive gearstraight key Oil pump driven gear Timing chain guide Timing chain Starter motorO-ring