2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 29Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 29

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CARBURETOR SYNCHRONIZATION

NOTE: After each step, rev the engine two or three times, each time for less than second, and check the synchronization againS Synchronize carburetor #4 to carb