Honda HRA-21 Owner's Manual page 26

AIR CLEANER SERVICE
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A dirty air cleaner will restrict air flow to the carbu-
retor. To prevent carburetor malfunction, service the
air cleaner frequently.
l.Remove the wing nuts and the air cleaner cover.
Remove the elements and separate them. Carefully
PAPER ELEMENT
WING NUTS
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check both elements for holes or tears and replace
if damaged.
2.Foam element: Clean in warm soapy water, rinse
and allow to dry thoroughly. Or clean in high
flash-point solvent and allow to dry. Dip the ele-
ment in clean engine oil and squeeze out all the
excess. The engine will smoke during initial start-
up if too much oil is left in the foam.
3. Paper element:
Tap the element lightly several
times on a hard surface to remove excess dirt, or
blow compressed air through the filter from the
inside out. Never try to brush the dirt off; brushing
will force dirt into the fibers, Clean in warm, soapy
water and rinse. Dry using compressed air blown
from the inside out, or shake the element and allow
it to air dry thoroughly. (Or clean in high flash-
point solvent, remove immediately, and allow to
dry.) Oil the outside of the paper with a light aero-
sol oil such as WD-40. The engine will smoke dur-
ing initial start-up if too much oil is used.
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FOAM ELEMENT
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