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.
Always use an 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. Remove the filter [2]
from the air cleaner
housing [3].
3. Inspect the filter, and
replace it if it is
damaged.
4. Clean the filter by
tapping the filter
several times on a
hard surface to
remove dirt, or blow
compressed air (not exceeding 207 kPa) 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 [4] that leads to the carburetor.
6. Reinstall the filter and cover.
12
[3]
[4]
Spark Plug Service
Recommended 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]
[1]
2. Remove the spark
plug with a spark plug wrench
[3].
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 [4].
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.
ENGLISH
NGK - BPR5ES
[1]
[2]
[3]
0.7 ~ 0.8 mm
[4]