Honda CRF450R 2012 Service Manual

ENGINE REMOVALIINSTALLATION
During engine
remova l, hold the
engine securely and
be careful not to
damage the frame
snd engine.
8-6
Remove the wire band.
Disconnect the alternator 4P (Black) and ignition
pulse generator 2P (Black) connectors.
Loosen the hose band sc rews and disconnect the
radiator hoses.
Remove the bolt, water hose joint and O-ring from
the cylinder head.
Remove
the nut, bolts, fuel hose guide, clutch cable
guide and engine hanger plates.
loosen the swing arm pivot nut.
Loosen the engine front and lower mounting nuts.
Remo ve the swing arm pivot nut , washer and bolt.
Remove the engine front and lower mounting nuts,
washers and bolts.
Remove the engine.
• A workstand or equivalent is need to support the
swing arm when removing the engine.
•

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