2005 Polaris Sportsman 400/500 Service Manual, Page 76Get this manual

2005 Polaris Sportsman 400/500 Service Manual, Page 76

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3 Loosen three camshaft sprocket bolts

5 Inspect camshaft end cap (thrust face) for wearReplace if worn or damaged6 Place clean shop towel in the area below cam chain sprocket and remove