Honda CRF450L 2019 User Manual

Servicing Your Honda 95
Valve Clearance
1. Check that the spark plug hole packing (1) is in
good condition and replace it if necessary.
Apply engine oil to the spark plug hole packing
and install it to the cylinder head cover (2).
2. Check that the cylinder head cover packing (3)
is in good condition and replace it if necessary.
Clean and apply liquid sealant (TB1207B or
equivalent) to the cylinder head cover groove
(4)
in the shown and install the cylinder head
cover packing into the cylinder head cover
groove.
3. Check that the rubber seals (5) are in good
condition, replace them if necessary.
Install the rubber seals onto the cylinder head
cover with the “UP” marks (6) facing up.
4. Install the cylinder head cover (2) and tighten
the cylinder head cover socket bolts (7) to the
specified torque:
7 lbf·ft (10 N·m, 1.0 kgf·m)
5. Connect the
spark plug cap (8) and breather
tube (9).
6. Install the fuel tank and seat (pages 46, 50).
Cylinder Head Cover Installation
(1) spark plug hole packing
(2) cylinder head cover
(3) cylinder head cover packing
(4) cylinder head cover groove
(3)
(2)
(1)
(4)
(5) rubber seals
(6) “UP” marks
(2) cylinder head cover
(7) cylinder head cover socket bolts
(6)
(6)
(5)
(7)
(2)
(8) spark plug cap
(9) breather tube
(8)
(9)

Honda CRF450L 2019 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Fuel System	Programmed Fuel Injection (PGM-FI), 46mm throttle body
Transmission	6-speed
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	120/80-18
Rake (Caster Angle)	28.5°
Wheelbase	58.9 inches
Seat Height	37.1 inches
Fuel Capacity	2.0 gallons
Ignition	Full transistorized ignition
Ground Clearance	12.4 inches
Front Suspension	49mm inverted fork; 12.0 inches of travel
Rear Suspension	Pro-Link Showa single shock, adjustable spring preload, compression and rebound damping
Front Brake	Single 260mm disc
Curb Weight	289 pounds
Valve Train	Unicam four-valve
Final Drive	Chain
Trail	4.6 inches (118mm)