Honda CRF450X 2009, Owner'S Manual & Competition Handbook

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HONDA O/M CRF450X (Eu) 3RMEY620 00X3R-MEY-6200
Front Suspension Adjustments
120
Adjustments for Competition
Fork Assembly
1. Drain the fork oil from the fork assembly (1)
by placing it upside down.
(About 7 cm
3 (0.2 US oz, 0.2 Imp oz) of fork
oil will be left in the fork assembly when it is
left inverted for about 20 minutes at 20°C
(68°F))
(1) fork assembly
To properly dispose of drained fluids, refer to
You & the Environment (page 151).
Improper disposal of drained fluids is harmful to
the environment.
NOTICE
2. Tighten the fork centre bolt lock nut (2) fully
and measure the thread length (A) as shown.
Standard: 11 – 13 mm (0.4 – 0.5 in)
Wipe the oil completely off the fork damper.
(2) fork centre bolt lock nut (A) thread length
3. Blow out the oil completely off the fork
spring (3) using the compressed air.
Install the fork spring.
Install the fork damper assembly (4) to the
fork assembly (1).
(1) fork assembly (4) fork damper assembly
(3) fork spring
(1)
Amount of fork oil left in the fork
(without damper and spring)
unit: cm 3
minute
°
C/
°
F
30/86
20/68
10/50
0/32
5
7.1
10.6
11.8
12.9
10
5.9
8.2
8.3
10.6
20
4.7
7.1
7.2
9.4
35
4.2
5.9
6.2
8.2
55
3.5
5.6
5.8
7.9
85
3.5
4.7
4.9
7.1
145
3.5
4.7
4.8
5.9
(cm 3 )
(2)
(A)
(4)
(3)
(1)