2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 137Get this manual

2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 137

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DRIVE CHAIN INSTALLATION
Be sure to install the collars in their original positions, otherwise the brake disc and secondary shaft will stick

0.20.7 mm (0.0080.028 in)ESSO beacon 325