Oil change, Air cleaner, Inspection – HONDA GX390 User Manual

Page 10: Cleaning

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ENGLISH

AIR CLEANER

Inspection

Cleaning

Dual-Filter Element Types

Oil Change

LOWER LIMIT

GASKET

GASKET

TAB

GROOVE

PRECLEANER CAP

AIR CLEANER
COVER

PAPER FILTER
ELEMENT

FOAM FILTER
ELEMENT

WING NUT

WING NUT

WING NUT

DRAIN PLUG

UPPER LIMIT

AIR CLEANER COVER

WING NUT

PAPER FILTER ELEMENT

FOAM FILTER ELEMENT

AIR GUIDE

CYCLONE HOUSING

SPECIAL PAN SCREW (3)

OIL FILLER CAP/DIPSTICK

STANDARD DUAL-FILTER
ELEMENT TYPE

CYCLONE DUAL-FILTER ELEMENT TYPE

10

Operating the engine without an air filter, or with a damaged air
filter, will allow dirt to enter the engine, causing rapid engine wear.
This type of damage is not covered by the Distributor’s Limited
Warranty.

Refer to pages

for instructions that apply to the air cleaner

and filter for your engine type.

Remove the wing nut from
the air cleaner cover, and
remove the cover.

Remove the wing nut from
the air filter, and remove the
filter.

Remove the foam filter from
the paper filter.

Inspect both air filter
elements, and replace them if
they are damaged. Always
replace the paper air filter
element at the scheduled
interval (see page

).

Drain the used oil while the engine is warm. Warm oil drains
quickly and completely.

Place a suitable container below the reduction case to catch the
used oil, then remove the oil filler cap/dipstick, the drain plug
and washer.

Allow the used oil to drain completely, then reinstall the drain
plug and a new washer, and tighten it securely.

Please dispose of used motor oil in a manner that is compatible
with the environment. We suggest you take used oil in a sealed
container to your local recycling center or service station for
reclamation. Do not throw it in the trash or pour it on the ground
or pour it down a drain.

Running the engine with a low transmission oil level can cause
transmission damage.

Screw in the oil filler cap/dipstick and tighten securely.

Remove the air cleaner cover and inspect the filter elements.
Clean or replace dirty filter elements. Always replace damaged
filter elements. If equipped with an oil-bath air cleaner, also check
the oil level.

With the engine in a level position, fill with the recommended oil
to the upper limit mark on the dipstick (see page

). To check the

oil level, insert and remove the dipstick without screwing it into
the filler hole.

Reduction case oil capacity:

0.30

(0.32 US qt , 0.26 Imp qt)

A dirty air cleaner will restrict air flow to the carburetor, reducing
engine performance. If you operate the engine in very dusty areas,
clean the air filter more often than specified in the MAINTENANCE
SCHEDULE (see page

).

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07/10/25 14:40:49 32Z5F600_010

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