Honda CRF450L 2019 User Manual

110 Servicing Your Honda
Suspension
1. Insert both fork legs into the fork clamps.
Tighten the fork bridge lower pinch bolts (1) to
the specified torque:
15 lbf·ft (20 N·m, 2.0 kgf·m)
2. Tighten the fork damper assembly (2) to the
specified torque using the lock nut wrench (3):
Actual:
56 lbf·ft (76 N·m, 7.7 kgf·m)
Torque wrench scale reading:
51 lbf·ft (69 N·m, 7.0 kgf·m), using a 20 in
(500 mm) long deflecting beam type torque
wrench.
• Lock nut wrench 07WMA-KZ30100
When using the lock nut wrench, use a 20 in (500
mm)
long deflecting beam type torque wrench.
The
lock nut wrench increases the torque wrench’s
leverage, so the torque wrench reading will be less
than the torque actually applied to the fork damper
assembly.
3. Tighten the fork bolt assembly (4) to the
specified torque:
22 lbf·ft (30 N·m, 3.1 kgf·m)
4. For ease of releasing air pressure after the forks
are installed, loosen the fork bridge lower
pinch bolts (1) and position the outer tubes so
that the fork air pressure release screws (5) are
in front of the compression damping adjuster
(6).
5. Align the groove (7) in the outer tube with the
top surface of the upper fork bridge (8).
Front Suspension Installation
(1) fork bridge lower pinch bolts
(1)
(2) fork damper assembly
(3) lock nut wrench
(4) fork bolt assembly
(4)
(2)
(3)
(1) fork bridge lower pinch bolts
(5) pressure release screw
(6) compression damping adjuster
(7) groove (8) upper fork bridge
(6)
(5)
(1)
Align
(7)
(8)

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)