2004-2007 Yamaha ATV Raptor 50 YMF50S Service Manual, Page 109Get this manual

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CAMSHAFT, ROCKER ARMS AND VALVES

10.Measure: valve spring free length Out of specification ReplaceValve spring free length 32 mm (1.26 in) Limit: 30.4 mm (1.20 in)

11.Measure

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