2008 Polaris ATV Sportsman 300 400 H.O. Service Manual, Page 62Get this manual

2008 Polaris ATV Sportsman 300 400 H.O. Service Manual, Page 62

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ENGINE (300) Rocker ArmRocker Arm Shaft Disassembly and Inspection
Inspect the rocker arm shaft and the shaft bore in the cylinder head for wear or signs of scoringMeasure I.Dof each rocker arm