Honda CRF450R User Manual

Valve Clearance
Servicing Your Honda 65
3. Install the cylinder head cover (5).
4. Tighten the cylinder head cover A bolt (6) and
cylinder head cover B bolts (7) to the
specified torque:
7 lbf·ft (10 N·m, 1.0 kgf·m)
(5) cylinder head cover
(6) cylinder head cover A bolt
(7) cylinder head cover B bolts
(8) spark plug cap
(9) breather tube
(6)
(5)
(7)
(8)
(9)
6. Install the fuel tank and the seat (page 31).5. Connect the spark plug cap (8) and breather
tube (9).

Honda CRF450R Specifications

General

Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	13.5:1
Fuel System	Programmed Fuel Injection (PGM-FI), 46mm throttle body
Ignition	Full transistorized ignition
Starter	Electric
Transmission	5-speed
Front Suspension	49mm inverted Showa coil-spring fork with rebound and compression damping adjustability; 12.2 inches travel
Front Brake	Single 260mm disc with twin-piston caliper
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	120/80-19
Final Drive	Chain
Rear Suspension	Showa single shock with Pro-Link; rebound and compression damping adjustability; 12.4 inches travel