Honda CRF450X 2008 Service Manual

MAINTENANCE
INSTALLATION
'05 - '07: Install a new gasket, spark arrester assembly and r::~-::~,:",,-
bolts.
Tighten
the bolts to the specified torque.
TORQUE: 12 N'm (1.2 kgf·m, 9 [bUt)
After '07: Apply molybdenum disulfide grease (T8 1 901 or
equivalent) to the bolt threads.
Install a new gasket, spark arrester assemb ly and
bolts.
Tighten the bolts to the specified torque.
TORQUE: 6 N'm (0 .6 kgf·m. 4.4 Ibf.ft)
SIDESTAND
INSPECTION
Support the motorcycle u pright on a level surface.
Check the sidestand spring for damage or loss of
tension.
Check the sidestand assembly for freedom of move-
ment and lubricate the sidestand pivot sl iding sur-
face if necessary.
Check the pivot bolt and nut on the si destand.
Tigh t en the pivot bolt to the specified torque.
Loosen the pivot bolt counterclockwise 45" - 90",
and tighten the pivot nut to the specified torque
while holding the pivot bolt.
TORQUE:
Sidestand pillot bolt :
10 N'm (1.0
kgf · m. 7 IbHt) - 45" to 90"
Sidestand pillot nut :
39 N'm (4.0 kgf 'm, 29 Ibf · it)
SUSPENSION
4-34
FRONT SUSPENSION INSPECTION
Check the action of the forks by operating the front
brakes and compressing the front suspension sev-
er
al times.
Check the entire assembly for si gns of leaks, dam-
age or loose fastener s.
Ma ke su re the fork protectors and dust seals are
clean and not packed wi th mud and dirt .
Remove any dirt
that has accumulated on the bot-
tom of the fork seals.
Replace
damaged components which cannot be
repaired.
Tighten all nuts and bolt s.
For fork service (page 14-13).

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