Air Cleaner - Honda CRF250R Owner's Manual & Competition Handbook

250R_024-054.qxd 2008.07.17 15:40 ページ43
Refer to Safety Precautions on page 19.
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. Remove the seat (page 29).
2. Remove the air cleaner retaining bolt (1).
3. Align the two access top tabs (2) of the air
cleaner assembly (3) and " " mark (4) of
the air cleaner housing by rotating the air
cleaner assembly counterclockwise.
(1)
(4)
(3)
(2)
(1) air cleaner retaining bolt
(2) two access top tabs
(3) air cleaner assembly
(4) " " mark
4. Remove the air cleaner keeping the two
access top tabs up.

Air Cleaner

5. Remove the air cleaner element (5) from the
air cleaner holder (6).
(8) (7)
(5)
(9)
(6)
(5) air cleaner element (8) hole
(6) air cleaner holder (9) air cleaner tab
(7) holder tab
6. Wash the air cleaner element 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.
7. Clean the inside of the air cleaner housing.
8. Allow the air cleaner element 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 element with oil.
Squeeze out excess oil.
9. Apply a thin coat of Honda White Lithium
Grease or equivalent to the sealing surface
between the air cleaner element and air
cleaner element holder.
10.Assemble the air cleaner element and holder.
Install the holder tab (7) of the holder in the
hole (8) of the air cleaner tab (9).
(cont'd)
Servicing Your Honda
43