Air Cleaner - Honda CRF250X Owner's Manual & Competition Handbook

Refer to Safety Precautions on page 2.
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 off-road vehicles. 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 Honda
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 genuine
Honda air cleaner specified for your model or an
air cleaner of equal quality.
NOTICE
Using the wrong air cleaner can result in
premature engine damage.
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.
Cleaning
1. To open the air cleaner cover (1), turn the
quick fastener (2) counterclockwise.
(1) air cleaner cover
(2) quick fastener
2. Remove the air cleaner retaining bolt (3) and
air cleaner (4) as shown.
(4)
(3)
(3) air cleaner retaining bolt

(4) air cleaner

3. Pull the air cleaner element (5) out from the
air cleaner holder (6).
(9)
(8)
(1)
(2)
(5) air cleaner element
(6) air cleaner holder
(7) tab
4. Wash the air cleaner in clean non-flammable
cleaning solvent. Then wash in hot, soapy
water, rinse well, and allow to dry thoroughly.
The air cleaner is made in two pieces: inner
and outer, which cannot be separated.
5. Clean the inside of the air cleaner housing.
6. Allow the air cleaner to dry thoroughly. After
drying, soak the air cleaner in clean Pro
Honda Foam Filter Oil or an equivalent air
cleaner oil.
Apply air cleaner oil to the entire surface,
inner and outer, and rub it with both hands to
saturate the air cleaner with oil. Squeeze out
excess oil.

Air Cleaner

(5)
(7)
(6)
(8) hole
(9) air cleaner tab
(cont'd)
51
Servicing Your Honda