Honda CRF450R 2012 Service Manual

FRONT WHEEL/SUSPENSION/STEERING
Do nor over-tighten Set the fork damper in a vise with a pie ce of wood
IhB vise. or soft jaws to avoid damage.
Be careful not to
benci or wmagft
the fork damper
PIston
rod wflen
the piston rod 1$
stroked.
14-24
Tighten the fork cap assembly to the specified
torque
by h olding the fork d amper using the speci al
too l.
TOOL:
l ock nut wren ch , 50 mm 07WMA ·KZ3 01 00
T OR Q UE : 30 N'm (3 .1 kgf·m, 22 Ibf.tt )
Hold
the fork dampe r in an upright position and
pump the fork piston rod 100 mm (3.9 in) slowly.
several times.
T urn the lock nut clockwise un til it is l ig ht ly sea ted.
NOTE:
• Set the rebound adjuster and compression
adjuster counterclockwise to the softest position.
• Check the fork damper piston rod sliding surface
for damage.
• Apply fork oil to the fork damper piston rod s lid ·
ing surface.
Cover the piston rod end with a clean shop t owe l to
prevent damage.
B lowo ut any ext ra oil in the f ork damper spring
chamber
by fully s tr oking the fork damper piston
ro d.
FORK DAMPER FORK CAP
ASSEMBLY
i.
Ii 100 mm (3.9 in)
PISTON ROD
V
L OC K NUT
PISTON ROD
FORK
DAMPER
l
~ TONROO

Honda CRF450R 2012 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.5:1
Induction	Programmed Fuel Injection (PGM-FI), 46mm throttle body
Ignition	CDI
Transmission	Close-ratio five-speed
Final Drive	#520 chain; 13T/48T
Front Brake	Single 240mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	120/80-19
Seat Height	37.6 inches
Ground Clearance	13.2 inches
Front Suspension	12.2 inches travel
Rear Suspension	Pro-Link Showa single shock with spring preload, rebound and compression damping adjustability; 12.4 inches travel
Rake	27° 04'
Trail	4.6 inches
Wheelbase	58.3 inches
Curb Weight	249 pounds