Honda CRF450R 2007 Service Manual

,
'-
REAR WHEEL/SUSPENSION
Do nor use any 50rt
of tool to remove
the bladder.
because It may
damage the
c/'Iamber cap.
2. Set the damper in a vise with soh jaws with the
damping adjuster facing up, being careful not to DAMPING AD'JUSTER
distort the damper body . Remove the damping
adjuster and O-rings.
NOTICE I
Do not over-tighten the vise. Damage to the damper
case will result.
3. Fill the damper with Pro Honda HP Fork Oil 5W or
equivalent through the damping adjuster hole,
while slowly pulling the damper rod out.
4. Reinstall the damping adjuster after 1illing the
damper .
• The damper must be kept upright to prevent oil
from leaking out.
5. Prace the damper with the reservoir chamber cap
facing up.
SHOCK OIL
6. Repeat steps 1 to 5 unt il the chamber cap is
remo ved fr om the reservoir. CHAMBER CAP
Remove the bl adder from the chamber cap.
Attach a new bladder to the chamber cap.
Do not reuse the If the bladder becomes distorted during installation,
bladder. depress the valve core to reform it.
x
NO GOOD
NEW BLADDER
o
GOOD
15-17

Honda CRF450R 2007 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Transmission	5-speed
Final Drive	#520 chain; 13T/48T
Front Suspension	47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4 inches travel
Front Brake	Single 240mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	110/90-19
Wheelbase	58.3 inches
Seat Height	37.6 inches
Fuel Capacity	1.9 gallons
Induction	Keihin 40mm carburetor
Ignition	CDI
Rear Suspension	Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment
Trail	4.6 inches