Fork Oil Adjustment - Honda CRF450R 2017 Owner's Manual & Competition Handbook

Fork Oil Adjustment

1. Remove the front suspension (page 86).
2. Disassemble the fork outer tube (page 88).
3. Disassemble the fork dumper (page 93).
Fork Oil Capacity:
Standard 27.4 Ibf/in (4.8 N/mm) Fork Spring
No mark
(factory products)
Standard oil 11.9 US oz
3
capacity (352 cm )
Maximum oil 13.1 US oz
capacity (387 cm 3 )
Minimum oil 10.2 US oz
capacity (302 cm 3 )
Example: Front fork characteristics when a
standard spring
Oil capacity 13.1 US oz (387 cm
(MAX)
Oil capacity 11.9 US oz (352 cm
(STANDARD)
Oil capacity 10.2 US oz (302 cm
(MIN)
Stroke (mm)
Optional Soft 26.3 Ibf/in (4.6 N/mm) Fork Spring
Standard oil
capacity
Maximum oil
capacity
Minimum oil
capacity
Optional Stiff 28.6 Ibf/in (5.0 N/mm) Fork Spring
Slightly stiffer as
it nears full
compression.
Slightly softer as
it nears full
compression.
Standard oil
capacity
Maximum oil
capacity
Minimum oil
3 )
capacity
3 )
3 )
1 scribe mark
12.1 US oz
(357 cm 3 )
13.3 US oz Slightly stiffer as
(392 cm 3 ) it nears full
compression.
10.4 US oz Slightly softer as
(307 cm 3 ) it nears full
compression.
2 scribe marks
11.7 US oz
(346 cm 3 )
12.9 US oz Slightly stiffer as
(381 cm 3 ) it nears full
compression.
10.0 US oz Slightly softer as
(296 cm 3 ) it nears full
compression.
Front Suspension Adjustments
4. Assemble the fork dumper (page 98).
5. Refilling the fork oil (page 89).
6. Install the front suspension (page 89).
Adjustments for Competition
125