2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 82Get this manual

2008 Yamaha Snowmobiles FX NYTRO Factory Service Manual, Page 82

FRONT SUSPENSION Adjustment steps: INSP ADJ WARNINGSupport the snowmobile securely on suitable stand before adjusting the
registers on the pump gauge CAUTION: Do not overtighten the connector onto the air valve as this will damage the connector
seal If the shock absorber has no air pressure, the gauge reading will be zero To increase the air pressure, operate the
pump few timesThe pressure should increase slowlyIf the pressure increases rapidly, check to make sure that the pump is properly
connected and tightened onto the air valveTo decrease the air pressure, push the bleed valve button 3 To allow pressure to
escape from the pump and the shock absorber, push the button halfway down and hold itTo allow only small amount of pressure