Honda CRF450L 2019 User Manual

Air Cleaner
Servicing Your Honda 75
Refer to Important Safety Precautions on page 33.
The air cleaner uses polyurethane inner and outer
pieces which can’t be separated.
A dirty air cleaner will reduce engine power.
Proper air cleaner maintenance is very important
for all motorcycle. A dirty, water-soaked, worn-
out
, or defective air cleaner will allow dirt, dust,
mud, and other impurities to pass into the engine.
Service the air cleaner more frequently if you ride
in unusually wet or dusty areas. Your dealer can
help you determine the correct service interval for
your riding conditions.
Your motorcycle' s air cleaner has very specific
performance requirements. Use a new Honda
Genuine air cleaner specified for your model or an
air cleaner of equal quality.
NOTICE
Using the wrong air cleaner may result in
premature engine wear.
Proper air cleaner maintenance can prevent
premature engine wear or damage, expensive
repairs, low engine power, poor gas mileage, and
spark plug fouling.
NOTICE
Improper or lack of proper air cleaner
maintenance can cause poor performance and
premature engine wear.
1. Remove the seat (page 46).
2. Remove the air cleaner lid bolts(1). Unhook
the retainer (2) and remove the air cleaner lid
(3).
3. Remove the air cleaner retaining bolt (4) and
air cleaner assembly(5).
4. Remove the air cleaner element (6) from the air
cleaner holder (7) by releasing the hole (8) of
the air cleaner element from the holder tab (9).
Cleaning
(1) bolts
(2) retainer
(3) air cleaner lid
(3)
(2)
(1)
(4) air cleaner retaining bolt
(5) air cleaner assembly
(6) air cleaner element (8) hole
(7) air cleaner holder (9) holder tab
(4)
(5)
(6)
(8)
(9)
(7)

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)