2001 Yamaha YFM660 Raptor Factory Service Manual, Page 194Get this manual

2001 Yamaha YFM660 Raptor Factory Service Manual, Page 194

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ROCKER ARMS

CHECKING THE ROCKER ARM 1.Check: Rocker arm lobes Valve adjusters Blue discolorationpittingscratches Replace2.Check: Rocker arms Rocker arm shafts Damagewear Replace

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