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

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Refer to Safety Precautions on page 25.
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 CRF'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.
Cleaning
1. To open the air cleaner housing cover (1), turn
the quick fastener (2) counterclockwise.
(1) air cleaner housing cover
(2) quick fastener
2. Remove the air cleaner retaining bolt (3) and
air cleaner assembly (4) as shown.
(4)
(3)
(3) air cleaner retaining bolt
(4) air cleaner assembly

Air Cleaner

3. Pull the air cleaner element (5) out from the
air cleaner holder (6).
(9)
(7)
(1)
(8)
(2)
(5) air cleaner element (8) hole
(6) air cleaner holder (9) air cleaner tab
(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 element 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 element in clean
Honda Foam Air 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.
Servicing Your Honda
(5)
(6)
(cont'd)
51