Front Suspension Adjustments
144 Adjustments
Front Suspension Adjustments
The front suspension can be adjusted for the rider's
weight and riding conditions by using one or more
of the following methods:
• Compression damping — Turning the
compression damping adjuster (1) adjusts how
quickly the fork compresses.
• Rebound damping — Turning the rebound
damping adjuster (2) adjusts how quickly the
fork extends.
The inverted fork on your motorcycle features
sealed damper cartridges with dual (separate air
and oil) chambers to prevent aeration. The design
also isolates the oil in each fork/damper, which
may contain air bubbles and/or metal particles,
from the sealed cartridge to provide more
consistent damping.
Air is an unstable gas which builds up pressure as it
is worked (such as in a fork). Air pressure acts as a
progressive spring and affects the entire range of
fork travel. This means the fork action on your
motorcycle will get stiffer during a race. For this
reason, release built-up air pressure in the fork legs
between race. Be sure the fork is fully extended with
the front tire off the ground when you release the
pressure.
The standard air pressure is 0 psi (0 kPa, 0 kgf/cm
2
).
You may relieve accumulated air pressure in the fork
legs by using the pressure release screws. The front
wheel should be off the ground before you release the
pressure. The air pressure should be adjusted
according to the altitude and outside temperature.
1. Place an optional workstand under the engine,
so that the front wheel is off the ground.
Do not adjust air pressure with the front wheel
on the ground as this will give false pressure
readings.
2. Remove the pressure release screw (1).
3. Apply recommended fork oil to a new O-ring
(2), and then install a new O-rings.
4. Install and tighten the pressure release screw to
the specified torque:
1.0 lbf·ft (1.3 N·m, 0.1 kgf·m)
(1) compression damping adjuster
(2) rebound damping adjuster
(1)
(2)
Front Suspension Air Pressure
(1) pressure release screw (2) O-ring (new)
(2)
(1)
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