Refueling - Honda HRX217HMA Owner's Manual

Spark Plug Service
Recommended Spark Plug: BPR5ES - NGK
NOTICE
Incorrect spark plugs can cause engine damage.
For good performance, the spark plug must be properly gapped and
free of deposits.
1. Disconnect the spark plug
cap and remove any dirt
from around the spark
plug area.
2. Remove the spark plug
with a 13/16 in (21 mm)
spark plug wrench.
3. Inspect the spark plug.
Replace it if the electrodes
are worn, or if the insulator is
cracked or chipped.
4. Measure the spark plug
electrode gap with a suitable
gauge. The gap should be
0.028 ~ 0.031 in (0.7 ~ 0.8 mm).
Correct the gap, if necessary,
by carefully bending the side
electrode.
5. Install the spark plug carefully,
by hand, to avoid
cross-threading.
6. After the spark plug seats,
tighten with a 13/16 in (21 mm) spark plug wrench to compress the
washer.
If reinstalling the old spark plug, tighten 1/8 to 1/4 turn after the
spark plug seats.
If installing a new spark plug, tighten 1/2 turn after the spark plug
seats to compress the sealing washer.
NOTICE
A loose spark plug can overheat and damage the engine.
Overtightening the spark plug can damage the threads in the
cylinder head.
7. Install the spark plug cap on the spark plug.
SPARK PLUG
SPARK
PLUG
CAP
SPARK PLUG
WRENCH
0.028 ~ 0.031 in
(0.7 ~ 0.8 mm)
SEALING
WASHER
Spark Arrester (Optional equipment)
Your lawn mower 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).
The spark arrester must be serviced every 100 hours to keep it
functioning as designed.
1. Allow the engine to cool and disconnect the spark plug cap to
prevent accidental starting.
2. Remove the three flange bolts and the heat shield. Remove the set
screw and the spark arrester from the muffler.
3. Inspect the spark arrester; replace it if the screen is damaged.
4. Check for carbon deposits on the spark arrester and the exhaust
port. Brush carbon deposits away. Be careful to avoid damaging
the spark arrester screen.
5. Installation is the reverse of removal. Tighten all hardware
securely.
6. Reconnect the spark plug cap.
FLANGE BOLT (3)

REFUELING

This engine is certified to operate on unleaded gasoline with a pump
octane rating of 86 or higher.
We recommend refueling after each use to minimize the air present in
the fuel tank.
Refuel in a well-ventilated area with the engine stopped. If the engine
has been running, allow it to cool first. Never refuel the engine inside a
building where gasoline fumes may reach flames or sparks.
You may use regular unleaded gasoline containing no more than 10%
ethanol (E10) or 5% methanol by volume. In addition, methanol must
contain cosolvents and corrosion inhibitors. Use of fuels with content
of ethanol or methanol greater than shown above may cause starting
and/or performance problems. It may also damage metal, rubber, and
plastic parts of the fuel system. In addition, ethanol is hygroscopic,
which means it attracts and retains water in the fuel system. Engine
damage or performance problems that result from using a fuel with
percentages of ethanol or methanol greater than shown above are not
covered by warranty.
If your equipment will be used on an infrequent or intermittent basis,
(more than 4 weeks before next use) please refer to the fuel section of
the STORAGE chapter (page
fuel deterioration.
SET SCREW
SPARK ARRESTER
HEAT SHIELD
16) for additional information regarding
13