Honda CRF450X 2005 User Manual

\.
Install the upper engine hanger plates, bolts, fuel
hose clamp , clutch cable guide and nut .
Tighten the engine hanger plate bolts to the
speci-
fied torque .
TORQUE: 26 N'm (2.7 kgf·m, 19 IbHt )
Tighten the upper engine mounting nut to the spec-
ified
to rque.
TORQUE: 54 N'm (5.5 kg f·m . 40 IbUt)
Be careful nor TO ler Install the shims,
the shims fa/l into
rhe left crank cas e. Install the following :
Instal/ rhe shims in - Spark plug (page 4-13)
rheiroriginal - Camshaft holder assembly ('05 - '07: page 9-8,
location. After '07: page 9·16)
- Carbur etor (page 6-24)
- Exhaust pipe (page 3-14)
- Ignition coil (page 18-8)
'05 and '06 Install the PAIR control valve (page 6-30).
Californis type,
After '06:
Fill the cooling system with recommended coolant
mixtu re (page 7- 7).
CAMSHAFT INSTALLATION ('05 - '07)
Apply molybdenum oil solut ion to the outer suriace
of each valve lifter.
Install the \lBlve Install the valve lifters into the camshaft holder.
lifters in their
originsllocation.
Make sure the dowel pins are installed into the cam-
shaft holder.
Apply molybden um oi l solution to the cam lobes
and camshaft bearings,
Install the camshaft holder assembly with the intake
cam lobes facing
up .
Apply oil to the camshaft holder mounting bolt
threads.
Install the camshaft holder mounting bolts.
Tighten the bolts in a crisscross pattern in
two or
three steps to the specified torque.
TORQUE: 14 N'm (1.4 kgf·m, 10 IbHt )
CYLINDER HEADIVALVES
LIFTERS
9-37

Honda CRF450X 2005 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Valve Train	Unicam, four-valve
Transmission	Wide-ratio five-speed
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
Ignition	Solid-state CD with electronic advance
Final Drive	520 O-ring-sealed chain
Front Suspension	47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4 inches travel
Rear Suspension	Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns); 12.4 inches travel
Induction	Keihin 40mm flat-slide carburetor