Fork Assembly - Honda CRF250R Owner's Manual

Front Suspension Adjustments
15. Drain the extra oil from the oil holes (12) of the
fork damper oil chamber (5).
By doing this procedure, about 5 cm (0.2 US oz,
3
0.2 Imp oz) of fork oil will be drained from the fork
damper oil chamber through the oil hole and cause
243 cm (8.2 US oz, 8.6 Imp oz) of fork oil to be
3
left in the fork damper oil chamber.
(12)
(5)
(5) fork damper oil chamber (12) oil holes
Pour the drained oil into a suitable container and
dispose of it in an approved manner (page 146).
NOTICE
Improper disposal of drained fluids is harmful to
the environment.
120
Adjustments for Competition

Fork Assembly

1. Drain the fork oil from the fork assembly (1)
by placing it upside down.
(About 5.4 cm (0.2 US oz, 0.2 Imp oz) of fork
3
oil will be left in the outer tube/slider when it is
left inverted for about 20 minutes at 20°C/68°F)
(1)

(1) fork assembly

To properly dispose of drained fluids, refer to You
& the Environment (page 146).
NOTICE
Improper disposal of drained fluids is harmful to
the environment.
Amount of fork oil left in the fork
(without damper and spring) unit: cm
minute
5 10 20 35 55 85
°C/°F
30/86 6.5 5.7 5.2 4.5 4.1 3.7
20/68 6.7 6.2 5.4 4.7 4.4 3.8
10/50 7.3 6.4 5.6 5 4.6 4.2
0/32 8.6 8.2 7.9 7.6 7.3 6.8
(cm3)
0˚C/32˚F
10˚C/50˚F
20˚C/68˚F
30˚C/86˚F
Inverted time (minutes)
2. Tighten the fork center bolt lock nut (2) fully
and measure the thread length (A) as shown.
Standard: 11 – 13 mm (0.43 – 0.51 in)
Wipe the oil completely off the fork damper.
(2)
(2) fork center bolt lock nut (A) thread length
3
145
3.3
3.5
3.8
6
(A)