Honda CRF450X 2020 User Manual

Servicing Your Honda 41
Before & After Competition Maintenance
It is important to the long term performance of
your CRF to practice a consistent maintenance
program. Right after the event is a good time to
begin your next maintenance cycle.
After
Moto Lubrication
Apply a light coating of rust-inhibiting oil to the
drive sprocket and any steel portions of the chassis
or engine where the paint has worn away.
This will prevent rusting of the exposed metal.
Apply rust-inhibiting oil more heavily if the event
was particularly wet or muddy. Take care to avoid
spraying any oil near the brake pads or the brake
discs.
Take care to prevent catching your fingers between
the chain and sprocket.
Routine Cleaning
If your CRF is only slightly dirty, it is best to clean
it by hand with the aid of a stiff bristled nylon
brush and some clean rags.
Take care to prevent catching your fingers between
the chain and sprocket.
A variety of reasonably priced cleaning brushes
are available from variety, drug, food, and
hardware stores. Some of these brushes are
extremely useful in removing dirt from the many
tight contours of the metal pieces of your CRF.
Avoid using stiff, abrasive brushes on the plastic or
rubber parts.
If your CRF was exposed to sea air or salt water,
rinse it as soon as possible after the event, dry it,
and apply a spray lubricant to all metal parts.
If you decide to wash your CRF or use cleaners,
refer to Appearance Care (page 136).
After Competition Maintenance
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Honda CRF450X 2020 Specifications

General

Engine Type	449cc liquid-cooled single-cylinder four-stroke
Bore x Stroke	96.0mm x 62.1mm
Compression Ratio	12.0:1
Induction	Programmed Fuel Injection (PGM-FI), 46mm throttle body
Starter	Electric
Final Drive	Chain
Rear Brake	Single 240mm disc
Front Tire	80/100-21
Rear Tire	110/100-18
Wheelbase	58.3 inches
Seat Height	37.6 inches
Fuel Capacity	2.0 gallons
Valve Train	Unicam, 4-valve
Ignition	Full transistorized
Rear Suspension	Pro-Link Showa single shock with spring preload, rebound and compression damping adjustability; 12.3 inches travel
Front Brake	Single 240mm disc
Curb Weight	275 pounds
Front Suspension	49mm leading-axle inverted telescopic Showa fork; adjustable compression and rebound damping; 12.0 inches of travel