2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 292Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 292

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MAINTENANCE SPECIFICATIONS
Aluminum alloy with dispersion coating 74.000 74.010 mm (2.9134 2.9138 in) 0.05 mm (0.002 in) 0.05 mm (0.002 in) 74.06 mm (2.9157 in) Chain drive (left) 24.500 24.521