Honda CRF450X 2020 Owner's Manual & Competition Handbook page 110

Suspension
12. Loosen the fork bridge lower pinch bolts (27),
then pull the fork legs down and out.
(27) fork bridge lower pinch bolts
13. Clean the fork assembly, especially the sliding
surface (28) of the slider and fork dust seal
(29).
14. Measure the length (30) between the axle
holder and outer tube and record it before
disassembling the fork.
(29)
(28)
(30)
(28) sliding surface (30) length
(29) fork dust seal
102
Servicing Your Honda
Recommended Fork Oil
suggested oil Pro Honda HP Fork Oil, SS-19
Fork Outer Tube Disassembly
(27)
Refer to Front Suspension Removal on page 100.
1. Clean the fork assembly, especially the sliding
surface of the slider and dust seal.
2. Hold the outer tube (1), then remove the fork
damper assembly (2) from the outer tube using
the lock nut wrench (3). Gently slide the outer
tube down onto the lower end (axle holder) (4).
• Lock nut wrench
(2)
(1)
(3)
(1) outer tube
(2) fork damper assembly
NOTICE
The outer tube (1) can drop on the axle holder (4)
and damage the fork dust seal (5). To avoid
damage, hold both the outer tube and slider when
removing the fork damper.
07WMA-KZ30100
(1)
(1) outer tube
(4) axle holder
3. Drain the fork oil from the outer tube (1) and
(4)
(3) lock nut wrench
(4) axle holder
(1) outer tube
(2) fork damper assembly (7) O-ring
(5)
(4)
(5) fork dust seal
oil holes (6) of the fork damper assembly (2).
Remove the O-ring (7) from the fork damper
assembly.
(1)
(2)
(6) oil holes
(1)
(6)
(7)