Spark Plug; Spark Arrester (Optional Part) - Honda FG110 Owner's Manual

Cleaning
A dirty air filter will restrict air flow to the carburetor, reducing engine
performance. If you operate the tiller in very dusty areas, clean the air
filter more often than specified in the MAINTENANCE SCHEDULE
(page 9).
We recommend using Honda Air Filter Oil,
which is available from your authorized
Honda dealer (page 19).
1. Remove the foam air filter from the air
filter base.
2. Clean the filter in warm soapy water
and rinse, or clean with nonflammable
solvent.
3. Squeeze excess water from the filter
and allow it to dry thoroughly.
4. Place the filter in a resealable plastic
bag and pour about 1 oz. (1/4 of a
bottle) of Honda Air Filter Oil into the
bag. Seal the bag closed and knead
the bag for one minute or longer until
the oil is completely distributed into the
foam filter. Squeeze excess oil from the
filter.
5. Remove the filter from the bag.
We recommend using latex gloves
when removing the oiled foam air filter
from the bag.
NOTICE
Operating the engine with a dry air filter
will allow dust to enter the engine
causing engine damage. The air filter
must be oiled after cleaning.
6. Wipe dirt from the air filter base and cover using a moist rag. Be
careful to prevent dirt from entering the carburetor.
7. Reinstall the foam air filter and air filter cover.

Spark Plug

Check the spark plug every year or 100 hours of use. Replace the
spark plug every 2 years or after 300 hours of use.
Recommended Spark Plug: NGK - CMR5H
NOTICE
An incorrect spark plug can cause engine damage.
1. Use a 4 mm Allen wrench to loosen the 5 x 12 mm hex bolt and
remove the fan cover.
FAN COVER
5 x 12 mm
HEX BOLT
2. Disconnect the spark plug cap, and remove any dirt from around
the spark plug area.
3. Remove the spark plug with a 5/8-inch spark plug wrench.
4. Inspect the spark plug.
Replace it if the
electrodes are worn, or if
the insulator is cracked
or chipped.
5. Measure the spark plug
electrode gap with a
suitable gauge.
GAP: 0.024 ~ 0.028 in
(0.60 ~ 0.70 mm).
Correct the gap, if
necessary, by carefully
bending the side
electrode.
6. Install the spark plug
carefully, by hand, to avoid
cross-threading.
7. After the spark plug seats,
tighten with a 5/8-inch spark
plug wrench to compress the
washer.
If reinstalling the used spark
plug, tighten 1/8 ~ 1/4 turn
after the spark plug seats.
If installing a new spark plug, tighten 1/2 turn after the spark plug
seats.
NOTICE
A loose spark plug can overheat and damage the engine.
Overtightening the spark plug can damage the threads in the
cylinder head.
8. Attach the spark plug cap.
9. Install the fan cover and 5 x 12 mm hex bolt and tighten securely.

Spark Arrester (optional part)

The spark arrester must be serviced every 100 hours to keep it
functioning as designed.
Your tiller engine is not factory-equipped with a spark arrester. In
some areas, it is illegal to operate an engine without a spark arrester.
Check local laws and regulations. An optional USDA approved spark
arrester is available from an authorized Honda servicing dealer. See
page 20 for part numbers.
If the engine has been running, the muffler will be very hot. Allow the
muffler to cool before servicing the spark arrester.
1. Loosen the 5 mm hex bolt, and then remove the fan cover.
SPARK PLUG
SPARK PLUG CAP
0.024 ~ 0.028 in
(0.60 ~ 0.70 mm)
SEALING
WASHER
11