2008 Polaris ATV Sportsman 300 400 H.O. Service Manual, Page 63Get this manual

2008 Polaris ATV Sportsman 300 400 H.O. Service Manual, Page 63

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ENGINE (300) Camshaft Removal
Camshaft Inspection
12 Thoroughly clean the camshaftVisually inspect each cam lobe and bearing journal for wear, scoring, or damageVerify oil delivery passage