Honda CRF450R 2013 User Manual

Servicing Your Honda 89
Suspension
NOTICE
Improper disposal of drained oil is harmful to the
environment.
5. Pour the recommended fork oil (page 88) into
the outer tube.
Fork Oil Capacity:
Be sure the oil capacity is the same in both fork
legs.
6. Check that the O-ring (7) on the fork damper
(2) is in good condition. Apply the
recommended fork oil to the O-ring.
Temporarily install the fork damper to the
outer tube (1).
After installing the fork leg (page 120), tighten
the fork damper to the specified torque using
the lock nut wrench:
Actual:
22 lbf·ft (30 N·m, 3.1 kgf·m)
Torque wrench scale reading:
20 lbf·ft (27 N·m, 2.8 kgf·m), using a 20 in
(50 cm) long deflecting beam type torque
wrench.
When using the lock nut wrench, use a 20 in (50
cm) long deflecting beam type torque wrench with
a lock nut wrench. The lock nut wrench increases
the torque wrench’s leverage, so the torque wrench
reading will be less than the torque actually applied
to the fork damper.
Amount of fork oil left in the fork
(within damper)
unit: US oz
(cm
3
)
minute
°F/°C
5 1020355585145
32/0 1.06
(31.2)
0.95
(28.1)
0.85
(25.2)
0.81
(23.9)
0.75
(22.3)
0.72
(21.3)
0.67
(19.7)
50/10 0.99
(29.3)
0.88
(25.9)
0.79
(23.4)
0.75
(22.2)
0.70
(20.6)
0.67
(19.7)
0.61
(18.1)
68/20 0.95
(28.1)
0.82
(24.2)
0.73
(21.6)
0.68
(20.2)
0.64
(18.9)
0.60
(17.8)
0.56
(16.5)
86/30 0.92
(27.1)
0.77
(22.9)
0.70
(20.7)
0.65
(19.3)
0.60
(17.6)
0.57
(16.8)
0.52
(15.4)
30
35
25
20
15
10
5
0
1.2
1.0
0.8
0.6
0.4
0.2
Inverted time
32°F/0°C
50°F/10°C
68°F/20°C
86°F/30°C
Amount of fork oil
(minutes)
(cm
3
)
(US oz)
Standard oil
capacity
8.3 US oz
(245 cm
3
)
Maximum
oil capacity
8.5 US oz
(250 cm
3
)
Slightly stiffer as
it nears full
compression.
Minimum oil
capacity
7.1 US oz
(210 cm
3
)
Slightly softer as
it nears full
compression.
(1) outer tube
(2) fork damper
(7) O-ring
(7)
(2)
(1)

Honda CRF450R 2013 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.5:1
Induction	PGM-FI, 46mm throttle body
Transmission	Close-ratio five-speed
Final Drive	#520 Chain; 13T/48T
Front Brake	Single 240mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	120/80-19
Wheelbase	58.7 inches
Seat Height	37.6 inches
Fuel Capacity	1.7 gallons
Ground Clearance	13.0 inches
Front Suspension	48mm inverted Kayaba PSF (Pneumatic Spring Fork) with air-adjustable spring rate, rebound and compression damping adjustability; 12.2 inches travel
Rear Suspension	Pro-Link single shock with adjustable spring preload, rebound and compression damping adjustability; 12.4 inches travel
Trail	4.6 inches