Honda CRF450X 2008 Service Manual

FUEL SYSTEM
TORQUE VALUES
Rear fender mounting bolt
Sub·frame upper mounting bolt
Sub·frame lower mounting bolt
Sub·frame upper /l ower mounting bolt
Shock absorber upper mounting nut
Throttle drum cover bolt
Needle jet
Main jet
Slow air jet
Starter jet
Slow jet
Ace. pump bypass
Carburetor top cover bolt
Float chamber sc r ew
Carburetor drain plug
Carburetor drain screw
Choke valve lock nut
Throttle bolt (carburetor side)
Throttle shaft screw
Throttle shaft
torx screw
Needle holder
Accelerator pump cover screw
Hot start valve lock nut
Throttle position sensor torx sc rew
Throttle
position sensor bolt
PAIR control val ve mounting nut
TOOLS
Carburetor float level gauge
07401-0010000
-'
6-4
('05 - '07)
('05
- '07)
(After '07)
('05
-'07)
(After '05)
('05, '06)
(After '06)
('05. '06)
(Afte r '06)
13 N ·m 0,3 kgf · m. 10 Ibf·tt)
30 N·m (3.1 kgf·m, 22 Ibf.ft)
49 N·m (5.0 kgf·m, 3S IbHt)
49 N'm (5 .0 kgf·m, 36 Ibf.ft)
44 N·m (4.5 kgf·m, 32 Ibf.ft)
3.4 N'm (0.3 kgf·m, 2.5 Ibf.ft)
1.8 N·m (0.2 kgf·m, 1.3 Ibf.ft)
1.5 N·m (0.2 kgf·m, 1.1 Ibf.ft)
0.9
N'm (0.1 kgf·m, 0.7 lbf.ft)
1 .5 N·m (0.2 kgf·m, 1. 1 IbUtl
1.5 N·m (0.2 kgf·m, 1. 1 Ibf.ft)
0.3 N·m (0.03 kgf·m, 0,2 Ibf·ft)
2.1 N·m (0.2 kgf·m, 1 .5 Ibf.ft)
2.1 N'm (0.2 kgf·m, 1.5 Ibf·ft)
4.9 N·m (0.5 kgf·m, 3.S Ibf ·ftl
1.5 N·m (0 .2 kgf ·m, 1.1 Ibf·ft)
2.1 N'm (0.2 kgf·m, 1.5 Ibf· ftl
4 N·m (0.4 kgf · m, 3.0 Ibf·ft)
2.1 N·m (0.2 kgf·m, 1.5 IbHtl
2.1 N'm (0.2 kgf·m, 1.5 Ibf· ftl
2.1 N·m (0.2 kgf· m, 1.5 lbf ·ft)
2.1 N·m (0.2 kgf·m, 1.5 Ibf.ft)
2.1 N·m (0.2 kgf·m, 1.5 lbf ·ft)
3.4 N·m (0.3 kgf· m, 2.5 Ibf.ft)
3.4 N'm (0.3 kgf· m, 2.5 Ibf ·h)
13 N'm (1.3 kgf·m, 10 Ibf ·ft)
U·nut
Apply locking agent to the
threads
Apply locking agent to the
threads
Pilot screw wrench
('OS, 'OS)
07908-4730002
Pil ot screw wrench (After '06)
07KMA-MSS0102

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