Honda CRF450X User Manual

Fuel System
Fuel Filter
The fuel filter is mounted on the bottom left side
of the fuel tank. Dirt accumulated in the filter
will restrict the flow of the fuel to the carburetor.
To service the fuel filter:
1. Drain the fuel from the fuel tank into an
approved gasoline container.
2. Remove the fuel tank (page 37).
3. Remove the fuel joint (1) from fuel tank by
removing the bolts (2). Wash the fuel filter
(3) in high flash-point cleaning solvent.
4. Reassemble the fuel joint in the reverse order
of removal. Check that the O-ring (4) is in
good condition and install it onto the fuel
joint.
Install the fuel joint in the fuel tank.
5. Install the fuel tank (page 38) and refill the
fuel.
Turn the fuel valve to ON or RES; check for
leaks.
(1) fuel joint (3) fuel filter
(2) bolts (4) O-ring
(2)
(4)
(3)
(2)
(1)
42 Servicing Your Honda

Honda CRF450X Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Induction	Programmed Fuel Injection (PGM-FI), 46mm throttle body
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
Fuel Capacity	2.0 gallons
Final Drive	#520 chain; 13T/51T
Front Suspension	49mm leading-axle inverted telescopic Showa fork; fully adjustable
Rear Suspension	Pro-Link Showa single shock with spring preload adjustability
Trail	4.6 inches
Curb Weight	275 pounds (Includes all standard equipment, required fluids and a full tank of fuel—ready to ride)
Rake	27.0°