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Honda CRF450R 2011 User Manual

Honda CRF450R 2011
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Suspension
(cont’d)
Servicing Your Honda 93
Refer to Front Suspension Disassembly on page 118
for front suspension removal.
1. Clean the fork assembly, especially the sliding
surface of the slider and dust seal.
2. 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).
Lock nut wrench 070MA-MEN0100
NOTICE
The outer tube (1) can drop on the slider (5) and
damage the fork dust seal (6). To avoid damage,
hold both the outer tube and slider when removing
the fork damper.
3. Drain the fork oil from the outer tube (1).
Drain the fork oil from the oil holes (7) of the
fork damper.
4. Drain the fork oil by turning the outer tube (1)
upside down. (About 15.8 cm
3
(0.5 US oz, 0.6
Imp oz) of fork oil will be left in the outer tube
when it is left inverted for about 20 minutes at
20°C/68°F.)
Pour the drained oil into a suitable container and
dispose of it in an approved manner (page 148).
NOTICE
Improper disposal of drained oil is harmful to the
environment.
Recommended Fork Oil
suggested oil KHL15-11 (KYB)
Fork Oil Change
(1) outer tube (3) lock nut wrench
(2) fork damper (4) slider
(2) (3)
(1)
(4)
(1)
(1) outer tube (6) fork dust seal
(5) slider
(1) outer tube (7) oil holes
(5)
(6)
(1)
NO GOOD
(1)
(7)
(1) outer tube
Amount of fork oil left in the fork
(within damper and spring) unit: cm
3
minute
°C/°F
5 1020355585145
0/32 24.6 22.0 19.4 17.7 16.5 15.5 14.0
10/50 22.7 19.8 17.6 16.0 14.8 13.9 12.4
20/68 21.5 18.1 15.8 14.0 13.1 12.0 10.8
30/86 20.5 16.8 14.9 13.1 11.8 11.0 9.7
(1)
(minutes)
Inverted time
0°C/32°F
10°C/50°F
20°C/68°F
30°C/86°F
Amount of fork oil
(cm
3
)
CRF450R.book Page 93 Thursday, July 8, 2010 9:34 AM

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Honda CRF450R 2011 Specifications

General IconGeneral
Engine Type449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke96.0mm x 62.1mm
Compression Ratio12.0:1
TransmissionClose-ratio five-speed
Final Drive#520 chain; 13T/48T
Front BrakeSingle 240mm disc with twin-piston caliper
Rear BrakeSingle 240mm disc
Front Tire80/100-21
Rear Tire120/80-19
Trail114mm (4.5 inches)
InductionPGM-FI, 46mm throttle body
Front Suspension48mm inverted with rebound and compression damping adjustability; 12.2 inches travel
Rear SuspensionPro-Link single shock with rebound and compression damping adjustability; 12.4 inches of travel
Wheelbase58.7 inches
Seat Height37.6 inches
Fuel Capacity1.5 gallons

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