Air Filter Cleaning - Honda and WT40X Owner's Manual

SERVICING YOUR HONDA PUMP
AIR FILTER CLEANING
A dirty air filter will restrict air flow to the carburetor, reducing engine
performance. If you operate the pump in very dusty areas, clean the
air filter more frequently than specified in the MAINTENANCE
SCHEDULE (see page 26 ).
1. Unscrew the wing nut from the
WTPOX type WTBOX and
air cleaner cover, and remove
wT4OX type
the air cleaner cover.
2. Unscrew the wing nut from the
air filter, and remove the air
filter.
3. Separate the foam and paper
:.:
air filter elements. Check both
&:,
filter elements, and replace
them if they are damaged.
Always replace the paper air
filter element every year or 300
hours. Clean the air filter
elements if they are to be
reused.
Paper air filter element: Tap the
filter element several times on a
hard surface to remove dirt, or
blow compressed air [not
exceeding 30 psi (270 kPa, 2.1
kg/cm2)] through the filter
element from the inside out.
Never try to brush off dirt;
brushing will force dirt into the
fibers.
Foam air filter element: Wash in warm, soapy water, then rinse
thoroughly, or wash in nonflammable solvent. Allow the filter
element to dry thoroughly. Dip the filter element in clean engine oil,
then squeeze out all excess oil. The engine will smoke when started
if too much oil is left in the filter element.
4. Wipe dirt from the air cleaner base and cover (and silencer if
applicable), using a moist rag.
5. Place the foam air filter element over the paper air filter element,
and install the assembled air filter. Be sure the gasket is in place
beneath the filter. Tighten the wing nut securely.
6. Reinstall the air cleaner cover, and tighten the wing nut securely.
33