2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 124Get this manual

2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 124

CRANKCASE INSPECTION
1Remove all traces of gasket sealer from the crankcase mating surfacesInspect the surfaces closely for nicks, burrs or damage2Check the oil pump and oil passage mating surfaces to be sure they are clean and not damaged

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