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86 Servicing Your Honda
Suspension
Recommended Fork Oil
viscosity (weight) 5 W
suggested oil Pro Honda HP Fork Oil or
equivalent
Fork Oil Change
Refer to Front Suspension Disassembly on page
113.
1. Clean the fork assembly, especially the
sliding surface of the slider and dust seal.
2. Record the rebound damping adjuster
position and turn the adjuster
counterclockwise until it stops.
3. Hold the outer tube (1), then remove the fork
damper (2) from the outer tube using the lock
nut wrench (3). Gently slide the outer tube
down onto the lower end of the slider (4).
(2)
(3)
(1)
(1)
(4)
(1) outer tube (3) lock nut wrench
(2) fork damper (4) slider, lower end
NOTICE
The outer tube (1) can drop on the slider (5) and
damage the fork dust seal (6) and guide bushing
(7) when the fork damper is removed. To avoid
damage hold both the outer tube and slider when
removing the fork damper.
(6)
(7)
(5)
(1)
(1) outer tube (6) fork dust seal
(5) slider (7) guide bushing
4. Drain the fork oil from the outer tube (1).
Drain the fork oil from the oil holes (8) of the
fork damper.
(8)
(1)
(1) outer tube (8) oil holes
5. Drain the fork oil by turning the outer tube
(1) upside down. (About 0.4 US oz (12 cm
3
)
of fork oil will be left in the outer tube when
it is left inverted for about 20 minutes at 20
°C/68°F.)
(1)
(1) outer tube
Pour the drained oil into a suitable container and
dispose of it in an approved manner (page 151).
NOTICE
Improper disposal of drained oil is harmful to the
environment.
Amount of fork oil left in the fork
(within damper and spring) unit: cm
3
minute
°
C/°F
30/86
20/68
10/50
0/32
5
27
29.4
28.2
30.6
10
15.3
16.5
21.2
22.4
20
10.6
11.8
16.5
18.8
35
9.4
10.6
15.3
16.5
55
8.3
9.4
12.9
16.5
85
7.9
8.2
11.8
15.3
145
7.9
8.2
11.8
14.1
(cm
3
)
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