Honda EU20i Owner's Manual page 45

2.AIR CLEANER SERVICE
A dirty air cleaner will restrict air flow to the carburetor. To prevent
carburetor malfunction, service the air cleaner regularly. Service more
frequently when operating the generator in extremely dusty areas.
Do not use gasoline or low flash point solvents for cleaning. They are
flammable and explosive under certain conditions.
CAUTION:
Never run the generator without the air cleaner. Rapid engine wear may
result.
1.Loosen the maintenance cover screw and remove the maintenance cover.
2.Loosen the air cleaner cover screw, and remove the air cleaner cover.
MAINTENANCE
COVER SCREW
MAINTENANCE
COVER
3.Clean in warm soapy water, rinse and allow to dry to thoroughly. Or
clean in high flash point solvent and allow to dry. Dip the main and
outer air cleaner elements in clean engine oil and squeeze out all the
excess. The engine will smoke during initial startup if too much oil is
left in the foam.
Clean
4.Reinstall the main and outer air cleaner elements and the air cleaner
cover. Tighten the air cleaner cover screw securely.
5.Reinstall the maintenance cover and tighten the maintenance cover
screw securely.
42
AIR CLEANER
COVER
SCREW
Squeeze and dry
Do not twist.
AIR CLEANER
COVER
Dip in oil
MAIN AIR CLEANER
ELEMENT
OUTER AIR
CLEANER
ELEMENT
Squeeze
Do not twist.