
13
Spark Plug
Replace the spark plug every 2 years or after 150 hours of use.
Recommended Spark Plug:
NGK - BPR5ES
NOTICE
An incorrect spark plug can cause engine damage.
For good performance, the
spark plug must be properly
gapped and free of deposits.
1. Allow the engine to cool,
disconnect the spark plug
cap, and remove any dirt
from around the spark plug
area.
2. Remove the spark plug
with a 21mm 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.
Gap:
0.7 ~ 0.8mm
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 21mm 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.
Spark plug torque:
20N·m
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 Arrester (optional part)
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.
2. Remove the three flange bolts and the heat shield. Remove the
setscrew and the spark arrester from the muffler.
3. Check for carbon deposits on the spark arrester and the exhaust
port. Use a brush to remove any carbon deposits from the screen.
Replace the screen if it is torn or damaged.
4. Installation is the reverse of removal. Tighten all hardware
securely.
TRANSPORTING
If the engine has been running, allow it to cool before loading the
mower on the transport vehicle. A hot engine and exhaust system can
burn you and can ignite some materials.
Turn the fuel valve to the OFF position. This will prevent carburetor
flooding and reduce the possibility of fuel leakage.
If installed, remove the grass bag.
If a suitable loading ramp is not available, two people should lift the
mower on and off the transport vehicle while holding the mower level.
Position the mower so all four wheels are on the bed of the transport
vehicle. Tie the mower down with rope or straps, and block the
wheels. Keep the tie-down rope or straps away from the controls,
adjustment levers, cables, and the carburetor.
Fold the handlebar so the mower will take up less space (
).
SPARK PLUG
SPARK
PLUG
CAP
0.7 ~ 0.8mm
SEALING
WASHER
SETSCREW
SPARK ARRESTER
FLANGE
BOLT (3)
HEAT SHIELD
Содержание HRX217HYUA
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