90
Air Pressure Adjustment
The air pressure should be adjusted according to the
altitude and outside temperature.
1. Place a workstand under the engine, so that the front
wheel is off the ground.
NOTE:
•
Do not adjust air pressure with the front wheel on
the ground as this will give false pressure for the fork.
2. Remove the pressure release screw.
3. Check that the O-ring is in good condition.
4. Install the pressure release screw.
SUSPENSION ADJUSTMENTS RELATlNG TO SPECIFIC
TRACK CONDITIONS
On soft ground, sand tracks and especially muddy
tracks, you want more compression damping force front
and rear. On harder ground you run less compression
damping.
Sand tracks require a bit more rebound damping force
as well. The bumps are usually bigger, but have more
distance between them so the shock has more time to
recover. And you don't want the rear end to kick up in
the sand.
The spring force requirements probably won't change
much between a hard track and a sand track. You may
want a little bit stiffer front suspension for sand tracks
to help keep the front end up and improve straight-line
stability.
In a muddy race, you want a stiffer spring front and
rear because your CRF becomes much heavier with the
accumulation of mud.
If you don't compensate for the additional weight of
the mud that collects during the race, then your CRF
will be undersprung and handling will deteriorate. The
suspension will be compressed too far most of the time
and the bike won't hook up very well.
If it is a fast, hard track with no large jumps, you can
probably run the same spring as normal, but run softer
damping both ways-compression and rebound. If you
run softer rebound damping, the wheel will follow the
rough ground and small bumps much better, and you
will hook up better. With a lot of rebound damping, the
wheel returns very slowly and doesn't contact the
ground quickly enough after each bump. The result is a
loss of traction and slower lap times.
(1) PRESSURE RELEASE SCREW
(2) O-RING
6. SUSPENSION ADJUSTMENT
