2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 23Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 23

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VALVE CLEARANCE ADJUSTMENT
VALVE CLEARANCE ADJUSTMENT NOTE: Valve clearance adjustment should be made on cold engine, at room temperatureS When the valve clearance is to be measured or adjusted,