Honda CRF450X 2008 Service Manual

,-
(
Drive in new
bearings squarely
with the marking
side facing toward
the inside of the
cran kcase.
CRANKCASE/CRANKSHAFT /TRANSMISSION/BALANCER
Drive new crankshaft bearings into both crankcase
halves using the special tools.
TOOLS :
left crankshaft bearing :
Driver
Attachm e nt , 62 x 68 mm
Right crankshaft bearing:
Driver
Attachment , 72 x 75 mm
Pilot, 30mm
07749 - 0010000
07746-0010500
07749-0010000
07746·0010600
07746-0040700
Clean and apply locking agent to the set plate la rx
screws.
NOTE:
Use Pro Honda Hondalock 3 or equivalent high
strength locking agent.
Install the torx screws with the set plates and
tighten
to the specified torque.
TORQUE: ' OS - ' 01 : 10 N'm (1 .0 kgf·m. 1Ibf ·ft)
After ' 01 : 20 N'm (2 .0 kgf·m. 15 Ibf · ft l
App ly transmission oil to a new right crankshaft oil ,i~~~~~~~iF~~~~~~~l
seal oute r surface.
Install a new right crankshaft oi l seal to the crank-
case until it is flush with the crankcase surface.
Apply transmission oil to a new left crankshaft oil
seal
ou ter surface.
Install a new left crankshaft oil seal to the specified
depth
below the crankcase surface as shown.
in)
13-17

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