Spark Plug Service
WARNING: DO NOT check for spark
with spark plug removed. DO NOT
crank engine with spark plug removed.
Spark Plug
Maintaining
the
WARNING: If the engine has been run-
ning, the muffler will be very hot. Be
careful not to touch the muffler.
Engine
To ensure proper engine operation, the spark plug must
be properly gapped and free of deposits.
1.
.
Remove the spark plug boot and use a spark plug
wrench to remove the plug, Figure 3-2.
Spark Plug Boot
2
Visually inspect the spark plug. Discard the spark
plug if there is apparent wear, or if the insulator is
cracked or chipped. Clean the spark plug with a wire Figure 3-2:The spark plug and boot.
brush if it is to be reused.
3.
Measure the plug gap with a feeler gauge. Correct
Electrode
as necessary by bending side electrode, Figure 3-3.
WARNING
The gap should be set to 0.02-0.03 inches (0.60-
0.80
mm).
DO NOT check for spark
with spark plug removed.
DO NOT crank engine
4
.
.
Check that the spark plug washer is in good condi-
tion and thread the spark plug in by hand to prevent
cross-threading.
with spark plug removed.
5
After the spark plug is seated, tighten with a spark
plug wrench to compress the washer.
0.02-0.03 in.
0.60-0.80
mm
If the engine has been
running, the muffler will
be very hot. Be careful
not to touch the muffler.
NOTE: When installing a new spark plug, tighten
turn after the spark plug seats to compress the
washer. When reinstalling a used spark plug, tighten
Figure 3-3: Use a feeler gauge to measure the plug gap.
1/2
1/8-1/4
turn after the spark plug seats to compress
the washer.
IMPORTANT: The spark plug must be tightened
securely. An loose spark plug can become very hot
and can damage the engine.
Cleaning the Engine
If the engine has been running, allow it to cool for at least
half an hour before cleaning. Periodically remove dirt
build-up from engine.
IMPORTANT: Do not spray engine with water to
clean because water could contaminate fuel. Using
a garden hose or pressure washing equipment can
also force water into the muffler opening. Water that
passes through the muffler can enter the cylinder,
causing damage.
WARNING: Accumulation of debris
around muffler could cause a fire.
Inspect and clean before every use.
8
| Categories | MTD Snow Blower Manuals, Snow Blower Manuals |
|---|---|
| Tags | MTD 179cc, MTD 208cc, MTD Snow Blower Manual |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | MTD, Snow Blower |
| Document File Type | |
| Publisher | mtdproducts.com |
| Wikipedia's Page | MTD Products |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)