Fork Assembly - Honda CRF450R Owner's Manual

Front Suspension Adjustments
12. Check the fork damper piston rod sliding
surface for damage.
13. Cover the fork damper piston rod end with
shop towel (11) to prevent fork damage.
Cover the oil holes with shop towel (11) to
prevent blow out of fork oil.
Blow the extra oil off from the fork damper oil/
air chamber (7) by pumping the fork damper
piston rod to full stroke.
NOTICE
Be careful not to bend or damage the fork damper
piston rod when the piston rod is stroked.
(11)
(7)
(11)
(7) fork damper oil/air chamber
(11) shop towel
120
Adjustments for Competition
14. Drain the extra oil from the oil holes (6) of the
fork damper oil/air chamber (7).
By doing above procedure, about 0.3 US oz (10
3
cm ) of fork fluid will be drained from the damper
oil/spring chamber through the oil hole and cause
11.6 US oz (343 cm 3 ) of fork fluid to be left in the
chamber.
(7)
(6)
(6) oil holes
(7) fork damper oil/air chamber
Pour the drained oil into a suitable container and
dispose of it in an approved manner (page 146).
NOTICE
Improper disposal of drained fluids is harmful to
the environment.

Fork Assembly

1. Drain the fork oil from the fork assembly (1)
by placing it upside down.
(About 0.2 US oz (7.2 cm 3 ) of fork oil will be
left in the outer tube/slider when it is left
inverted for about 20 minutes at 68 °F/20 °C)
(1)

(1) fork assembly

To properly dispose of drained fluids, refer to You
& the Environment on page 146.
NOTICE
Improper disposal of drained fluids is harmful to
the environment.