2005-2009 Kawasaki Brute Force 650/KVF 650 4x4 Service Manual, Page 124Get this manual
5-16 ENGINE TOP END Rocker Case
Rocker Arm Inspection
Inspect the area [A] on the rocker arm where the cam rubsIf the rocker arm is scored, discolored or otherwise damagedreplace itAlso inspect the camshaft lobes Inspect the end of the valve clearance adjusting screws [8] where it contacts the valve stem If the end of the adjusting screw is mushroomed or damaged in any way, or if the screw will not turn smoothly, replace itAlso inspect the end of the valve stem Measure the inside diameter [C] of the rocker arm with dial bore gaugeIf the rocker arm inside diameter is larger than the service limit, replace itAlso check the rocker shaft diameter (see Rocker Shaft Diameter Measurement)Rocker Arm Inside Diameter Standard: 12.000 -12.018 mm (0.47240.4731 in Service Limit: 12.05 mm (0.474 in