2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 70Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 70

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CARBURETOR TUNING
CAUTION:
Never run the engine without the air intake silencer installedSevere engine damage may result1 Tighten the pilot mixture screw until it is lightly seated and the