Table of Contents
Advertisement
Engine Oil Recommendations
Oil is a major factor affecting performance and service life. Always
change the oil in accordance with the Maintenance Schedule
(page
12).
Recommended oil for general use: SAE 10W-30
Other viscosities shown in the chart may be used when the average
temperature in your area is within the recommended range.
The SAE oil viscosity and service category are in the API label on the
oil container. Honda recommends API service category SJ or later oil.
Air Filter
Clean the air filter after the first 20 hours of use. Thereafter, clean the
filter every 50 hours of use. Clean the filter more often when used in
dusty areas. Replace the filter every 200 hours of use.
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.
NOTICE
Operating the engine without an air filter, with a damaged air filter, or
with an improperly installed air filter cover will allow dirt to enter the
engine, causing rapid engine wear. This type of damage is not
covered by the "DISTRIBUTOR'S LIMITED WARRANTY" on
We recommend the use of a Honda Genuine air filter to ensure it
seals and performs as designed. Using a non-Honda air filter can
result in dirt bypassing the filter, causing damage to the engine or fuel
system.
1. Remove the wing nuts from the air cleaner cover.
2. Remove the air filter and separate the filter elements.
3. Inspect the elements for holes,
tears, or other damage, and
replace them if they are
damaged.
4. Clean the elements:
Paper: Tap the element several
times on a hard surface to
remove dirt, or blow compressed
air not exceeding 30 psi [207
kPa] through the filter from the
inside. Never try to brush off dirt;
brushing will force dirt into the
fibers.
Foam: Clean in warm soapy
water and rinse or clean in
non-flammable solvent and allow
to dry. Apply oil to the clean filter
and squeeze out all excess oil.
5. Use a moist rag to wipe dirt from
the inside of the air cleaner
housing and cover. Be careful to
prevent dirt from entering the air
duct that leads to the carburetor.
14
30
5W-30 • 10W-30
0
20
40
60
80
100°F
-20
-10
0
10
20 30 40°C
WING NUTS
AIR CLEANER HOUSING
NOTICE
Excess oil will restrict air flow through the foam element and may
transfer to the paper element, soaking and clogging it.
6. Place the foam air filter element over the paper element and
reinstall the assembled air filter.
7. Install the air cleaner cover and tighten the cover wing nuts
securely.
Spark Plug
Replace the spark plug every 200 hours of use.
Required 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 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.
Gap: 0.028 ~ 0.031 in
page
23.
(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
COVER
spark plug seats.
If installing a new spark plug, tighten 1/2 turn after the spark plug
seats.
PAPER
Spark plug torque: 14 ft-lb (20 N·m)
FILTER
ELEMENT
NOTICE
A loose spark plug can overheat and damage the engine.
FOAM
Overtightening the spark plug can damage the threads in the
FILTER
cylinder head.
ELEMENT
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.
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
1. Allow the engine to cool and disconnect the spark plug cap.
SPARK PLUG
CAP
0.028 ~ 0.031 in
(0.7 ~ 0.8 mm)
SEALING
WASHER
page 22
for part numbers.
SPARK PLUG
WRENCH
Advertisement
Table of Contents
