Adjustments for Competition 99
Front Suspension Adjustments
Both compression and rebound damping can be
increased by turning the adjuster clockwise.
Always start with full hard when adjusting
damping.
Do not turn the adjuster screw more than the
given positions or the adjuster may be damaged.
Be sure that the rebound and compression
adjusters are firmly located in a detent, and not
between positions.
NOTICE
Front Suspension Disassembly
• If your CRF 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 Shop Manual or your
Honda dealer for this service.
• When disassembling the fork, turn the
rebound and compression adjusters
counterclockwise to the softest position to
prevent damaging the adjustment needle (be
sure to record the number of turns from the
starting position).
1. Place your CRF on the workstand or
equivalent support with the front wheel off the
ground.
2. Remove the disc cover bolt (1).
Fork Springs
The fork springs in CRF’s are about right for
riders weighing between 68 and 73 kg (150 and
160 lbs) (less riding gear). So if you're a heavier
rider, you have to go up on the oil capacity or get
a stiffer spring. Do not use less oil than the
minimum specified for each spring or there will
be a loss of rebound damping control near full
extension. If the fork is too hard on big bumps,
turn the damping adjuster counterclockwise
1-turn and lower the oil capacity in increments of
5 cm
3
(0.2 US oz, 0.2 Imp oz) in both fork legs
until the desired performance is obtained. Do not,
however, lower the oil capacity below the
minimum oil capacity.
Minimum oil capacity:
Standard spring:
318 cm
3
(10.8 US oz,
11.2 Imp oz)
Softer spring: 323 cm
3
(10.9 US oz,
11.4 Imp oz)
Stiffer spring: 313 cm
3
(10.6 US oz,
11.0 Imp oz)
When adjusting oil
capacity
, bear in mind that the
air in the fork will increase in pressure while
riding; therefore, the higher the oil
capacity
, the
higher the eventual pressure of any air in the fork.
(1) rebound damping adjuster screw
(2) compression damping adjuster screw
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