Honda CRF450X 2020, Owner'S Manual & Competition Handbook

Page: 120 / 204

112
Servicing Your Honda
Suspension
17. Blow out any oil from the oil hole (9) of the
fork damper assembly (4) using compressed
air.
Wipe off the oil completely from the fork
damper.
18. If you cannot use compressed air, remove the
fork air pressure release screws (11) from the
fork bolt assembly.
Hold the fork damper upside down for 20
minutes and drain the fork oil.
Apply recommended fork oil to a new O-ring
(12), and then install a new O-rings on the air
pressure release screws (11).
Tighten the air pressure release screws to the
specified torque:
1.0 lbf·ft (1.3 N·m, 0.1 kgf·m)
19. Fully stroke the piston rod (2) by pushing
down the fork damper assembly (4).
Check the piston rod for smooth operation.
If the piston rod operation is not smooth, check
the piston rod for bends or damage.
1. Drain the fork oil from the fork assembly (1)
by placing it upside down.
(About (0.2 US oz (5.4 cm
3
) of fork oil will be
left in the fork assembly when it is left inverted
for about 20 minutes at 20 °C/68 °F)
To properly dispose of drained fluids, refer to You
& the Environment on page 160.
NOTICE
Improper disposal of drained fluids is harmful to
the environment.
(4) fork damper assembly
(9) oil hole
(11) air pressure release screws
(12) O-rings (new)
(4)
(9) (11) (12)
(2) fork damper piston rod
(4) fork damper assembly
(4)
(2)
Fork Damper Installation
(1) fork assembly
Amount of fork oil left in the fork
(without damper and spring)
unit: cm
3
minute
°C/°F
5 10 20 35 55 85 145
30/86 6.5 5.7 5.2 4.5 4.1 3.7 3.3
20/68 6.7 6.2 5.4 4.7 4.4 3.8 3.5
10/50 7.3 6.4 5.6 5 4.6 4.2 3.8
0/32 8.6 8.2 7.9 7.6 7.3 6.8 6
(1)
31MKE710.book 112 ページ ２０１９年３月１１日 月曜日 午前１０時４７分