2004-2007 Yamaha ATV Raptor 50 YMF50S Service Manual, Page 105Get this manual

2004-2007 Yamaha ATV Raptor 50 YMF50S Service Manual, Page 105

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CAMSHAFT, ROCKER ARMS AND VALVES
2 Check: rocker arm shaft Blue discolorationexcessive wearpitting scratches Replace or check the lubrication system3 Check: camshaft lobe Excessive wear Replace

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