Adjusting The Front Fork - Yamaha Vmax VMX12N Owner's Manual

INSTRUMENT AND CONTROL FUNCTIONS

Adjusting the front fork

This front fork is equipped with air
valves for adjusting the spring rate.
Always adjust both fork legs equal-
ly, otherwise poor handling and loss
of stability may result.
EAU03414
EW000035
1. Air valve cap
2. Air valve
Adjust the spring rate as follows.
1. Elevate the front wheel by placing
the motorcycle on the centerstand.
NOTE:
When checking and adjusting the air
pressure, there should be no weight on
the front end of the motorcycle.
2. Remove the air valve cap from
each fork leg.
1. Air pressure gauge
NOTE:
An optional air pressure gauge is avail-
able at a Yamaha dealer.
3-11
3. Check the air pressure in each
fork leg with an air pressure
gauge.
4. To increase the spring rate and
thereby harden the suspension,
increase the air pressure with an
air pump or compressed air. To
decrease the spring rate and
thereby soften the suspension, de-
crease the air pressure by pushing
each valve stem down.