Honda CRF450X 2010 User Manual

l
Apply molybdenum oil so l ution to the rocker arm
bore and valve slipper surfaces.
Install the rocker arm and rocker arm shaft into the
camshaft holder .
Install a new stopper ring into the groove of the
camshaft holder.
Apply molybdenum oil solution to the
decompressor plunger sliding surface and
decompressor shaft 20.9 mm, 14 mm 0.0. areas.
Install the decompressor plunger and
decompressor shaft into the camshaft by aligning
the groove on the plunger and pin on the shaft as
shown.
CYLINDER HEADIVALVES
, ROCKER
SH)PPI;R RING ~
9-23

Honda CRF450X 2010 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore and Stroke	96mm x 62.1mm
Compression Ratio	12.0:1
Transmission	Wide-ratio five-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
Fuel Capacity	1.9 gallons
Ignition	Solid-state CD with electronic advance
Rear Suspension	Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and 13-position compression damping adjustability; 12.4 inches travel
Rake	27.38 degrees