Honda EU20i Owner's Manual page 23

3.Check the air cleaner.
Check the air cleaner elements to be sure they are clean and in good
condition.
Loosen the maintenance cover screw and remove the maintenance
cover. Loosen the air cleaner cover screw, and remove the air cleaner
cover, check the elements.
Clean or replace the elements if necessary (see page 42).
CAUTION:
Never run the engine without the air cleaner elements. Rapid engine
wear will result from contaminants, such as dust and dirt, being drawn
through the carburetor, into the engine.
MAINTENANCE COVER SCREW
MAINTENANCE COVER
AIR CLEANER BODY
AIR CLEANER ELEMENTS
AIR CLEANER COVER
AIR CLEANER COVER SCREW
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