Spark Plug - Honda HHT35SUKA Owner's Manual

Cleaning
A dirty air filter will restrict air flow to the carburetor, reducing engine
performance. If you operate the trimmer in very dusty areas, clean the
air filter more often than specified in the MAINTENANCE SCHEDULE
(page 15).
Honda Air Filter Oil can be used instead of
clean engine oil and is available from your
authorized Honda dealer (page
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. of clean engine oil
into the bag. Seal the bag closed and
knead the bag until the oil is completely
distributed into the foam filter. Squeeze
excess oil from the filter.
5. Remove the 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.
29).

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.
Required 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.
5/32 in (4 mm)
HEX WRENCH
(commercially available)
5 x 12 mm
HEX BOLT
SPARK PLUG
SPARK PLUG
CAP
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.
TORQUE: 106 in•lb (12 N•m)
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.
TOP
COVER
SPARK PLUG
SPARK PLUG CAP
0.024 ~ 0.028 in
(0.60 ~ 0.70 mm)
SEALING
WASHER
17