2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 216Get this manual

2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 216

VALVES AND VALVE SPRINGS REMOVAL The following procedure applies to all of the valves and related components Before removing
their original place 2Inspect: Valve (for leakage) Leakage at the valve seat Check the valve face, valve seat, and valve
seat widthInspection steps: Pour clean solvent into the intake and exhaust ports Check that the valves properly seal There
should be no leakage at the valve seat 1 3Remove: Valve cotters Remove the valve cotters by compressing the valve spring