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Honda CRF450R User Manual

Honda CRF450R
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Front Suspension Adjustments
Adjustments for Competition 101
14.Hold the outer tube, then remove the fork
damper (23) from the outer tube using a lock
nut wrench (24). Gently slide the outer tube
down onto the lower end of the slider (25).
11.Clean the fork assembly, especially the sliding
surface of the slider (18) and dust seal (19).
The outer tube can drop on the slider and
damage the fork dust seal and guide bushing
when the fork damper is removed. To avoid
damage hold both the outer tube and slider when
removing the fork damper.
NOTICE
(18) slider (20) outer tube
(19) dust seal (21) guide bushing
12.Record the rebound damping adjuster position
and turn the adjuster counterclockwise until it
stops.
13.Measure the length (22) between the axle
holder and outer tube and record it before
disassembling the fork.
(23) fork damper (25) slider, lower end
(24) lock nut wrench
15.Pour the fork oil from the outer tube (20).
Pour the fork oil from the oil hole (26) of the
fork damper.
(20) outer tube (26) oil hole
16.Temporarily install the fork damper to the
outer tube.
17.Set the lower end (axle holder) (27) of the
slider in a vise with a piece of wood or soft
jaws to avoid to damage.
Over tightening the vice can damage the axle
holder.
18.Loosen the center bolt (28).
NOTICE
(27) axle holder (28) center bolt
19.Push out the fork center bolt from the axle
holder of the slider by pushing the fork
damper.
20.Make the mechanic's stopper tool out of a thin
piece of steel (1.0 mm thick) as shown if you
do not have the special tool.
(22) length
(19)
(21)
(18) (20)
(22)
(24)
(23)
(25)
(20)
(26)
(27)
(28)
33 mm
12.2 mm

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Honda CRF450R Specifications

General IconGeneral
Bore x Stroke96.0mm x 62.1mm
Compression Ratio13.5:1
Fuel SystemProgrammed Fuel Injection (PGM-FI), 46mm throttle body
IgnitionFull transistorized ignition
StarterElectric
Transmission5-speed
Front Suspension49mm inverted Showa coil-spring fork with rebound and compression damping adjustability; 12.2 inches travel
Front BrakeSingle 260mm disc with twin-piston caliper
Rear BrakeSingle 240mm disc
Front Tire80/100-21
Rear Tire120/80-19
Final DriveChain
Rear SuspensionShowa single shock with Pro-Link; rebound and compression damping adjustability; 12.4 inches travel

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