Air Filter; Spark Plug Service; Carburetor - MTD 179cc Notice D'utilisation

Oil Drain
Figure 6-2
NOTE:
Please dispose of used motor oil
in a manner that is compatible with the
environment. We suggest you take it in a
sealed container to your local service station
for reclamation. Do not throw it in the trash
or pour it on the ground.
9. Install the oil drain plug and tighten
securely.
10. Clean area around the oil drain plug.
11. Remove the oil fill cap dipstick.
12. Fill with the recommended oil (See Set Up
Section).
NOTE:
DO NOT overfill oil filler. Doing
so may result in oil carry-over to the
equipment and cause malfunction or
damage.
NOTE:
DO NOT allow oil level to fall below
the "L" mark on the dipstick. Doing so
may result in equipment malfunction or
damage.
13. Wipe away any spilled oil.
14. Checking Oil Level (See Set Up Section)
15. Install the oil fill cap dipstick. Tighten
securely.
16. Carefully disconnect spark plug wire from
grounding post, if present.
17. Carefully reconnect the spark plug wire to
the spark plug.
NOTE:
It is advisable to recheck the oil level after
you have operated the engine for a short while,
and the normal engine operating temperature
has been achieved.
WARNING!
If the engine has been
running, the muffler, engine head and
spark plug will be very hot. Be careful
not to touch any of these components
until they have cooled.

Spark Plug Service

WARNING!
DO NOT check for spark
with spark plug removed. DO NOT crank
engine with spark plug removed.
Check the spark plug yearly or every 100
operating hours. To ensure proper engine
operation, the spark plug must be properly
gapped and free of deposits.
1. Remove the spark plug boot. See Fig. 6-.
2. Clean the area around the spark plug.
3. Use a spark plug wrench to remove the
plug.
WARNING!
If the engine has been
running, the muffler, engine head and
spark plug will be very hot. Be careful
not to touch any of these components
until they have cooled.
4. Visually inspect the spark plug. Discard
the spark plug if there is apparent wear,
or if the insulator is cracked or chipped.
Replace the plug if the electrodes are
pitted, burned or fouled with deposits.
5. Clean the spark plug with a wire brush if it
is to be reused.
6. Measure the plug gap with a feeler gauge.
Correct as necessary by bending side
electrode. See Fig. 6-3. The gap should be
set to 0.030 in. (0.76mm).
Electrode
0.06-0.03 in.
0.60-0.80 mm
Figure 6-3
7. Check that the spark plug washer is in
good condition
8. Thread the spark plug in by hand to
prevent cross-threading.
9. After the spark plug is seated, tighten
with a spark plug wrench to compress the
washer.
NOTE:
When installing a new spark plug,
tighten 1⁄2 turn after the spark plug seats to
compress the washer. When reinstalling a
used spark plug, tighten 1⁄8-1⁄4 turn after the
spark plug seats to compress the washer.
NOTE:
The spark plug must be securely
tightened. An improperly tightened
spark plug can become very hot and may
damage the engine.

Air Filter

NOTE:
Not all engines have air filters, such as
engines used for snow throwers. Service the air
filter if one is present.
Paper filters cannot be cleaned and must be
replaced once a year or every 10 operating hours;
more often if used in extremely dusty conditions.
WARNING!
Never use gasoline or low
flash point solvents for cleaning the air
cleaner element. A fire or explosion
could result.
NOTE:
Never run the engines that have air filters
without them. Rapid engine wear can result.
1. Press the tab on the air filter cover and lift
the cover, or un-thread the thumbscrews,
depending on the model of engine you
have. See Fig. 6-4.
Figure 6-4
2. Replace paper element when dirty or
damaged. Clean foam element or replace
when damaged.
3. To clean foam element, separate it
from the paper element and wash in
liquid detergent and water. Allow to dry
thoroughly before using. Do not oil the
foam element.
Adjustments
DO NOT make any engine adjustments. Factory
settings are satisfactory for most conditions.
If adjustments are needed, contact your
Authorized Servicing Dealer.

Carburetor

If you think you carburetor needs adjusting, see
your nearest Authorized Servicing Dealer. Engine
performance should NOT be affected at altitudes
up to 7,000 feet (2,134 meters). For operation
at higher elevations, contact your Authorized
Servicing Dealer
Alternator (if equipped)
Contact your Authorized Servicing Dealer for
alternator related electrical problems such as:
• Inoperative Starter
• Discharged Battery
• Fuse Replacement
• Alternator Maintenance/Repairs
Engine Speed
WARNING!
To avoid serious injury or
death, DO NOT modify engine in any
way. Tampering with the governor
setting can lead to a runaway engine
and cause it to operate at unsafe speeds.
NEVER tamper with the factory setting
of the engine governor.
WARNING!
Running the engine faster
than the speed set at the factory can be
dangerous and will VOID THE ENGINE
WARRANTY.
S 6— M
ection aintenance
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