2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 67Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 67

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CARBURETOR TUNING
Mid-range and high speed tuning Adjustments are normally not required, but may sometimes be necessary, depending on temperatures, altitude or bothMid-range speed and high speed