Honda 85RB EXPERT 2006, Owner'S Manual

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72
Adjustments for Competition
Refer to Safety Precautions on page 19.
The front suspension can be adjusted for the
rider’s weight and riding conditions by using one
or more of the following methods:
• Oil volume — The effects of higher or lower
fork oil level are only felt during the final 3.9
in (100 mm) of fork travel.
• Compression damping — Turning the
compression damping screw adjusts how
quickly the fork compresses.
• Rebound damping — Turning the rebound
damping screw adjusts how quickly the fork
extends.
• Fork springs — Optional springs are
available in softer and stiffer types than the
standard rate. (page 116)
Front Suspension Air Pressure
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 CR will get stiffer during a race. For
this reason, release built-up air pressure in the
fork legs between motos. 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 a 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) of each
front suspension.
3. Check that the O-ring (2) is in good condition.
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) pressure release screw (2) O-ring
Front Suspension Oil Level
• If your CR is brand-new, put enough part-
throttle break-in time (about one hour) on it to
ensure that the suspension has worked in.
• For optimum performance, and extended fork
life, the fork should be completely
disassembled and cleaned after the first three
hours of riding. See the Service Manual or
your Honda dealer for this service.
1. Place your CR on the optional workstand or
equivalent support with the front wheel off the
ground.
2. Loosen the upper pinch bolts (1) (before
loosening the fork caps to avoid damaging the
fork caps).
3. Loosen the fork caps (2), but do not remove
them yet.
Using an adjustable wrench to loosen the fork
caps may damage them.
(1) upper pinch bolts (2) fork cap
NOTICE
Front Suspension Adjustments
(1)
(2)
(1)
(2)
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