Honda CRF450X 2008 Service Manual

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Connect the throttle position sensor 3P (Black) con·
nector.
Install the shock absor be r u pp er mounting bolt and
nut.
Tight en the upper mounting n ut to the specified
torque.
TORQUE: 44 N'm
14 .5 kgf·m, 32 Ibf.ft)
L owe r the sub-frame and connect the air cleaner !1'.;,:~
co nn ecting boot securely. ~ ,
Tighten the sub- fr a me moun ting bolts to the speci·
fied torq ue.
TORQUE ('05 - '07):
Upper : 30 N'm (3.1 kgf ·m, 22 Ibf.ft)
lower : 49 N'm (5 .0 kgf ·m, 36 Ibf.ft)
TORQUE
(After '07):
Upp er/ lo we r: 49 N'm (5 .0 kgf·m, 36 IbUt)
Tighten the air cleaner connecting boot band scr ew P --"
securely.
Install
the following:
- Muffler ('OS - '07: page 3·9, After '07: page 3-11)
- Fuel tank (page 3-8)
-
Seat (page 3-3)
After installation, ch eck the f ollowi ng:
- Secondary air leak aro und the insulator and co n-
necting boot
- Fuel leaks ar ound the fu el hose and car buretor
- Route the overflow hose, air vent hoses and fuel
hose properly ('05 - '07: page '-25, Afte r '07:
page 1·32).
- Throttle operat ion (page 4-9)
- Hot start
lever (page 4-10)
FUEL SYSTEM
6-25

Honda CRF450X 2008 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore and Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Transmission	5-speed
Final Drive	#520 chain; 13T/51T
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	110/100-18
Wheelbase	58.3 inches
Seat Height	37.6 inches
Fuel Capacity	1.9 gallons
Induction	Keihin 40mm carburetor
Ignition	CD with electronic advance
Rear Suspension	Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment; 12.4 inches travel
Trail	4.6 inches