2010 Polaris Sportsman 850 Service Manual, Page 125Get this manual

2010 Polaris Sportsman 850 Service Manual, Page 125

ENGINE Rocker ArmRocker Arm Shaft Inspection 12Mark or tag rocker arms and shafts to keep them in their respective locations
in cam carrierCompare to specifications (See "Engine Specifications EH085OLE013" on page 5.5)3Inspect each rocker arm rollerRoller
surface should be smoothAxial movement should be minimalRoll smooth flat rod across the roller, applying firm downward pressure