MTD 111-638A - Manual (Page 15)

FIGURE 28.
SPARK PLUG
The spark plug should be cleaned (see figure 29)
and the gap reset to a 0.030-inch ciearance once a
season (see figure 30). Spark piug repiacement is
recommended at the start of each mowing
season; check engine manuai for correct plug
type.
Clean
Electrode
FIGURE 29.
.030"
eeler Gauge
' ■ ' S p a
NOTE
Whenever the spark plug is removed
for cieaning, it is advisabie to
replace the spark plug gasket with a
new gasket.
OFF SEASON STORAGE
If the machine is to be inoperative for a period
ionger than 30 days, the foiiowing procedures are
recommended:
1. Working outdoors, drain ail fuel from the fuel
tank. Use a clean dry cloth to absorb the small
amount of fuel remaining in the tank. Then run
the engine until all fuel in the carburetor is ex­
hausted.
I WARNING j
Do not drain fuel while smoking, or
if near an open fire.
2. Drain all the oil from the crankcase (this
should be done after the engine has been
operated and is still warm). Refill the
crankcase with clean new oil.
3. Disconnect the spark plug wire and remove
the spark plug from the cylinder. Pour about 2
or 3 tablespoons of engine oil into the
cylinder. Turn the engine over several times to
spread out the oil. Replace the spark plug, but
do not connect the wire.
4. Clean the engine and the entire mower
thoroughly.
5. Lubricate all lubrication points.
»park
Plug
FIGURE 30.
15