Honda CRF450X 2008 Service Manual

FUEL SYSTEM
Except '051100 '06 Connect the crankcase breather hose.
~lrfo(mlJ type,
Aher '06:
'05
and '06 Connect the crankcese breather hose and PAIR air
Caltfoml8 type, suction hose .
After '06:
6-10
Lower the s ub -frame and connect the air cleaner
connec ti ng boot sec ur ely.
Tighten the sub-frame mounting bolts to the speci·
fied torque .
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):
Upper / lo wer : 49 N'm (5.0 kgf -m, 36 Ibf.ft'
Tighten the air cleaner connecting boot band sc r ew
securely.
Hook the
ai r cleaner case cover and band securely
to the fuel tank.
Install the following :
- Banery (page 17· 6)
R egulato r/ rectifier (page 17-8)
Muffler ('05 - '07: page 3-9, After '07: page 3·11 )
Radiator s hr ou ds (page 3-4)
Side covers (page 3-3)
Seat (page 3-3)
•

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