Honda GX120 Owner's Manual page 37

SERVICING YOUR ENGINE
Oil-Bath Type
1. Remove the wing nut, and remove the air cleaner cap and cover.
2. Remove the air filter from the cover, Wash the cover and filter
in
warm, soapy water, rinse, and allow to dry thoroughly. Or clean in
nonflammable solvent and allow to dry.
3. Dip the filter
in clean engine oil, then squeeze out all excess oil. The
engine will smoke if too much oil is left in the foam.
4. Empty the used oil from the air cleaner case, wash out any
accumulated dirt with nonflammable solvent, and dry the case.
5. Fill the air cleaner case to the OIL LEVEL mark with the same oil that
is recommended for the engine (see page28).
Oil capacity: 2.0 US oz (60 cm3,
2.1
Imp
02)
6. Reassemble the air cleaner, and tighten the wing nut securely.
/WING
NUT
OIL LEVEL
34