Honda CRF450X 2005 User Manual

FRONT WHEEL/SUSPENSION/STEERING
If the fork damper has not been disassembled from
the outer t ube /slider, turn it upside down for 20 min-
utes and drain the oil from the inside of the outer
tube and slider completely (12 cc at 20 °C/ 6B
O
F) .
Amount of fork oil left in the fork
(within damper and spring)
unit: cc
minute
5 10 20
35 55 85
145
30/86 27 15.3 10.6 9.4 8.3
7.9 7.9
~
20/ 68 29.4 16.5 11.8 10.6 9.4 8.2 8.2
1:3
10150 28.2 21.4 16.5 15.3 12.9 11.8 11.8
•
0/32 30.6 22.4 18.8
16.5 16.5
15.3 14.1
Tighten the lock nut fully and measure the length as
shown.
STANDARD: 11 - 13 mm (0.43 - 0.51 in)
Wipe the oil completely off the fork damper.
FOR K DAMPER INSTALLATION
Wipe the oil completely off the fork spring .
Install the fork spring into the fo rk assembly.
Temporarily install the fork damper assembly into
the fork assembly.
FORK DAMPER/OUTER TUBE/SUDER
( minute s)
Inverted time
NUT
'05 - '07 shown: FORK DAMPER ASSEMBLY
SPRING
FORK ASSEMBLY
14-27
,

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