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Engine Maintenance
CheckEngine
Oil
Stop engine and wait several
minutes
before
checking
oil level.
Remove
oil fill dipstick.
Check oil level on dipstick.
With engine on level
ground,
the oil must be to FULL mark on dipstick.
Replace
dipstick
and tighten.
ChaegiagEegiae
Oil
Only use high quality
detergent
oil rated with API
service classification
SF, SG, or SH. Select the
oil's SAE viscosity
grade according
to the
expected
operating
temperature.
Follow the chart
below:
Colder
<
32°F
-)_
Warmer
5W30
I
SAE 30
Oil Viscosity Chart
NOTE:
Afihough
multi-viscosity
oils (SW30,
10W30,
etc.) improve
starting
in cold weather,
they wiff resuff
in increased
oil consumption
when used above 32_'F.
Check
your engine
oil level more
frequently
to avoid
possible
engine
damage
from running
low on oil.
Change
engine oil after the first five hours of
operation,
and every 50 hours thereafter.
Change
oil every 25 hours of operatk)n
if the engine
is
operated
under heavy
load or in high ambient
temperatures.
To Draie Oil
Drain oil while engine is warm. Follow the instructions
given bek)w.
Drain the gas tank, start the engine and let it run
until the fuel line and carburetor
are empty.
Remove
oil fill dipstick.
Tip unit on its side to drain through the oil fill tube.
When engine
is drained
of all oil, refill with
approximately
20 oz. of fresh oil Refer to Gas
And Oil Fill-up in OPERATION
section.
Replace
dipstick.
Service Air Cleaner
The air cleaner
prevents
damaging
dirt, dust, etc.,
from entering
the carburetor
and being forced
into the
engine and is important
to engine life and
performance.
WARNING:
Never
run the engine
without
an air cleaner
completely
assembled.
To Service Air Filter
Loosen
air
cleaner
cover
screw,
but
do
not
remove
screw from cover. Swing cover down to
remove from hinge.
Inspect filter for discoloration
or dirt
accumulation.
If either is present,
proceed
as
follows:
Clean inside of body and cover thoroughly
and
remove
cartridge.
Reassemble
new cartridge
in the body. Swing
cover down and tighten the screw loosened
earlier.
WARNING:
Temperature
of muffler and
nearby areas may exceed
150 ° F(65°C).
Avoid these areas.
Service Spark Plug
Clean the spark plug and reset the gap to.030"
at
least once a season
or every 50 hours of
operation.
See Figure 9.
Clean area around
spark plug. Remove
and
inspect
spark plug.
Replace
if electrodes
are pitted, burned or the
porcelain
is cracked.
Check electrode
gap with wire feeler gauge
and
reset gap to.030
inches.
NOTE:
Do not
sandblast
spark
plug.
Spark
plug
should
be cleaned
by scraping
or wire brushing
and
washing
with a commercial
sohvent.
,030" Feeler Gauge
....
.
.
"
SparkPlug
"
Figure 9
Clean Engine
Clean engine periodically, by removing dirt and
debdswgh a cloth or brush.
NOTE:
Cleaning
with a forceful
spray
of water is not
recommended
as water
could
contaminate
the fuel
system.
To ensure
smooth
operation
of the engine,
keep
the governor
linkage,
springs,
and controls
free
of debris.
Every 100 hours of operation,
remove
combustion
deposits
from top of cylinder,
cylinder
head, top of piston,
and around valves.
Service cartridge
every 25 operating
hours or
every season.
Service
cartridge
more often under
dusty conditions.
11
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