Engine Oil Change; Checking The Spark Plug; Maintenance Of Spark Arrester (Optional Equipment) - Honda HRN536C Operator's Manual

ENGINE OIL CHANGE

Drain the oil while the engine is warm. Warm oil
drains quickly and completely.
1. Turn the fuel valve OFF. This will reduce the possibility of fuel leakage
(page 9).
2. Wipe the oil filler area clean, and then remove the oil filler cap/dipstick.
3. Place a suitable container
next to the mower to catch
the used oil, and then tilt the
mower on its right side. The
used oil will drain through
the filler neck. Allow the oil
to drain completely.
Please dispose of used
motor oil and the containers
in a manner that is
compatible with the
environment. We suggest
you take it in a sealed
container to your local recycling center or service station for
reclamation. Do not throw it in the trash, pour it on the ground or pour
it down a drain.
4. Fill with the recommended oil
(page 7).
Refill Amount:
0.35~0.40 L
Do not overfill.
Measure the oil level as shown
below.
5. After changing the engine oil and
before starting the engine, check the
oil level with the mower on a level
surface:
a. Remove the filler cap/dipstick [1].
b. Wipe the dipstick clean.
c. Insert and remove the dipstick
without screwing it into the filler
neck. Check the oil level shown
on the dipstick.
d. If the oil level is below the low
level mark [3], add oil to reach the
high limit mark [2] on the
dipstick. Do not overfill. If the
engine is overfilled, the excess oil
may get transferred to the air
cleaner housing and air cleaner
filter.
NOTICE
Running the engine with a low oil level can cause engine damage.
e. Screw in the filler cap/dipstick securely.
12 EN
C19 D8
SAFETY
[1]
[2]
[3]

CHECKING THE SPARK PLUG

Required spark plugs:
NOTICE
Incorrect spark plugs can cause engine damage.
For good performance, the spark plug [1] must be properly gapped and
free of deposits.
1. Disconnect the spark plug
cap [2], and remove any dirt
from around the spark plug
area.
2. Remove the spark plug with
a 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 0.7 ~
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 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 washer [3].
TORQUE: 20 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.
7. Install the spark plug cap on the spark plug.
MAINTENANCE OF SPARK ARRESTER
(OPTIONAL EQUIPMENT)
In Europe and other countries where machinery directive
2006/42/EC is enforced, this cleaning should be done by
your servicing dealer.
The spark arrester must be serviced every 100 hours to keep it functioning
as designed.
1. Allow the engine to cool.
2. Unclip the two red top cover tabs [6] on the muffler side of the engine,
and then slightly lift the red top cover up to expose the upper muffler
shield bolt.
3. Remove the three bolts [1] from the muffler shield [2] using a 10 mm
socket wrench.
4. Remove the muffler shield [2].
5. Remove the set screw [4].
6. Remove the spark arrester [3] from the muffler [5].
7. 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.
8. Install the spark arrester into the muffler.
NGK - BPR5ES
[1]
0.7 ~ 0.8 mm
[3]
SAFETY
[2]
C19