Honda CRF450L 2019 User Manual

Exhaust Pipe/Muffler
(cont’d)
Servicing Your Honda 133
Refer to Important Safety Precautions on page 33.
Check the mounting bolts and exhaust pipe joint
nut
s for tightness.
Check the exhaust pipe and muffler for cracks or
deformation.
A damaged exhaust pipe and muffler may reduce
engine performance.
1. Remove the seat (page 46).
2. Remove the right side cover (page 47).
3. Loosen the muffler clamp bolt (1).
4. Remove the muffler mounting A bolt (2), B
bolt (3), washer (4), and muffler (5).
1. Remove the gasket (1).
2. Install a new gasket onto the exhaust pipe (2).
3. Align the cutout (3) of the muffler (4) with the
tab (5) of the muffler clamp (6).
4. Install the muffler.
5. Install the washer (7), muffler mounting B bolt
(8)
and A
bolt (9).
Exhaust Pipe/Muffler Inspection
Muffler Removal
(1) muffler clamp bolt
(2) muffler mounting A bolt
(3) muffler mounting B bolt
(4) washer
(5) muffler
(1)
(4)
(3)
(5)
(2)
Muffler Installation
(1) gasket (4) muffler
(2) exhaust pipe (5) tab
(3) cutout (6) muffler clamp
(7) washer
(8) muffler mounting B bolt
(9) muffler mounting A bolt
(4)
(6)
(2)
(3)
(1)
(5)
(7)
(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)