Honda CRF450X 2005 User Manual

CYLINDER HEADIVALVES
TOOLS
Valve spring compressor
07757·001 0000
Valve guide remover, 5.5 mm
07742-00 101 00
Valve guide reamer , 5.0 mm
07984-MASOOOl or
07984- MA6000D (U.S.A. on ly)
Flat cutter, 33 mm (32°, EX)
Q7780'()012900
or equivalent comme rcially avail-
able in U.S.A.
9-4
Valve spring compressor attach·
ment
07959-KM30101
Valve guide dr iver
07743-0020000
not available in U.S.A.
Valve seat cutter, 35 mm (45°, IN)
07780-0010400
or equivalent commercially avail-
able in U.S.A.
Flat cutter, 36 mm (32", IN)
07780-0013500
or equivalent commercially avail-
able in U.S.A.
Valve guide remover, 5.0 mm
07942-MASOOOO
Va l ve guide reamer, 5.5 mm
07984-2000001 or
07984-2000000 (U.S.A. only)
Va l ve seat cutte r, 33 mm (45", EX)
07780-0010800
or equivalent commercially avail-
able in U.SA
Interior cunet, 37 .5 mm (60 °, IN )
07780-00 141 00
or equivalent commercially avail-
able in U .SA
•
•

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