Honda CRF450X 2020 Owner's Manual & Competition Handbook page 111

4. Drain the fork oil by turning the outer tube (1)
upside down. (About 0.46 US oz (13.7 cm
fork oil will be left in the outer tube when it is
left inverted for about 20 minutes at 68°F/
20°C.)
(1)
(1) outer tube
Pour the drained oil into a suitable container and
dispose of it in an approved manner (page 160).
NOTICE
Improper disposal of drained oil is harmful to the
environment.
Amount of fork oil left in the fork
(within damper and spring)
minute
5 10 20 35
°C/°F
30/86 16.5 14.1 12.7 11.8
20/68 17.4 15 13.7 12.6 11.5
10/50 18.9 16.5 14.8 13.7 12.5
0/32 20 18.4 15.9 14.5 13.7
0°C/32°F
10°C/50°F
20°C/68°F
Inverted time
Fork Oil Refilling
3 ) of
1. Pour the recommended fork oil into the outer
tube (1).
Be sure the oil capacity is the same in both fork
legs.
(1)
(1) outer tube
Recommended Oil:
Pro Honda HP Fork Oil, SS-19
Recommended Standard Amount:
unit: cm 3 12.2 US oz (361 cm
55 85 145
Fill the fork oil which is obtained by docking off
11 10.1 8.6
the amount of the remaining oil in the fork from the
10.5 9.1
recommended standard fork oil capacity.
11.4 9.8
13 11.7
Refer to Front Suspension Adjustments on
page 140.
30°C/86°F
(minutes)
3 )
Suspension
2. Apply the recommended fork oil to a new O-ring
(2). Install the O-ring on the fork damper
assembly (3).
(2) O-ring (new) (3) fork damper assembly
3. Pull up the fork outer tube (1) slowly and
temporarily tighten the fork damper assembly
(3) using the lock nut wrench (4).
07WMA-KZ30100
• Lock nut wrench
(4)
(3)
(1)
(1) outer tube (4) lock nut wrench
(3) fork damper assembly
Servicing Your Honda
(2)
(3)
103