2003 Polaris Scrambler 50-90 Sportsman 90 Predator 90 Service Manual, Page 47Get this manual
ENGINE 6Install the wave washer and then install the external circlipsInstall the dowel pin into the crankshaftWave Washer Stator Installation 9Install new stator gasket
Oil Pump Drive Gear Pin
External Circlip Crankshaft 7Install the oil pump assemblyInstall the oil pump and torque to specification10Install the statorUse the alignment marks previously made during the disassembly of the statorTorque the bolts to specification