Honda HRN536CVKEA, Owner'S Manual

Page: 13 / 132

13
ENGLISH
Air Cleaner Service
A properly maintained air filter will help prevent dirt from entering your
engine. Dirt entering the carburetor can be drawn into small passages
in the carburetor and cause premature engine wear. These small
passages can become blocked, causing starting or running problems.
It is recommended to always use a genuine Honda air filter specified
for your engine to ensure it seals and performs as designed. You will
need to clean the filter more frequently if you operate the engine in
very dusty conditions.
NOTICE
Operating the engine without an air filter, or with a damaged filter, will
allow dirt to enter the engine, causing rapid engine wear. This type of
damage is not covered by the warranty.
1. Press down on the air cleaner cover [1] tabs, and then remove the
cover [2].
2. Remove the filter [3] from the air cleaner housing [4].
3. Inspect the filter; replace if damaged.
4. Clean the filter by tapping the filter several times on a hard surface
to remove dirt, or blow compressed air (not exceeding 2 bar/29 psi)
through the filter from the inside. Never try to brush off dirt;
brushing will force dirt into the fibers.
5. Wipe dirt from the inside of the air cleaner housing and cover,
using a moist rag. Be careful to prevent dirt from entering the air
duct that leads to the carburetor.
6. Reinstall the filter and cover.
Spark Plug Service
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.
Spark Arrester Service
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.
9. Install the muffler shield on the engine, tighten the three bolts
securely, and then reattach the red top cover.
Required spark plugs: NGK - BPR5ES
[4]
[3]
[2]
[1]
[2]
[1]
0.7 ~ 0.8 mm
[3]
[4]
[3]
[1]
[2]
[5]
[6]
(red cover shown removed)