2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 214Get this manual

2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 214

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CYLINDER HEAD
When the bolts are tightened more than the specified angle, do not loosen the bolt and then retighten itReplace the bolt with new one and perform the procedure again
CAUTION: