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ENGINE
AND
SNOWTHROWER
MAINTENANCE
7.
Slowly unscrew the drain plug. Allow the oil
to
run
down the cardboard and into the container.
8.
After the oil has drained, reinstall the drain plug
and very securely tighten
it.
9.
Add clean oil
to
the engine. See "Checking
Engine Oil Level and Adding Oil
to
Engine".
Engine
Ignition
System
The snowthrower engine has
an
electronic ignition
system. This system eliminates the traditional set of
points and condensor. The electronic ignition system
also eliminates the yearly tune-up. The only sched-
uled maintenance you need to perform
on
the
engine's ignition system concerns the spark plug
(which
is
discussed next).
Spark
Plug
Yearly,
or every
100
hours of operation, remove the
engine's spark plug, clean it, and inspect it. Clean
the spark plug by scraping it (don't wire brush it or
sand blast it). Replace the spark plug with a new one
if its electodes were pitted or burned, or if its por-
celain was cracked.
Before installing the spark plug, set its electrode
gap
at
0.030
inch.
COMPLIANCE WITH
RADIO INTERFERENCE
REGULATIONS CERTI-
FIED. REPLACE SPARK
PLUG WITH RESISTOR
.030 (.8
mm)
SPARK PLUG.
FEELER GAUGE
Figure 5-3
Carburetor
Adjustment
Your carburetor has been set for proper operation.
If you believe that it has come out of adjustment,
please refer
to
the engine owner's manual for the
correct carburetor adjustment procedure.
SNOWTHROWER
MAINTENANCE
Lubrication
Refer
to
Figure 5-4 and the numbered items follow-
ing it
to
determine which areas
on
your snowthrower
should
be
lubricated.
At
the beginning and end of each snow throwing
season,
be
sure
to
lubricate the snow thrower
as
recommended. This will help prevent any corrosion at
20
friction points during the off-season. It will also
ensure that the snowthrower will be ready
to
use
when the first snow falls.
AUGER
FRONT VIEW OF AUGER
F
Figure 5-4
1.
Use clean engine oil or a silicone spray
to
lubri-
cate the handlebar levers' pivot points.
Be
careful
not
to
get any oil or silicone spray
on
the levers.
2. Clean any dirt off the toothed part of the flange
on
the bottom of the discharge chute. Apply fresh
grease
to
the worm gear and toothed part of the
flange.
3.
Apply fresh engine oil
to
the bearing
on
each side
of the auger shaft. Wipe off any excess oil.
4.
Sparingly oil the discharge chute control crank
where it enters the control panel. Also oil it at the
support
on
top of the left hand rear side of the
frame.
5.
Sparingly apply oil to the two pivot points
on
the
deflector cap.
6.
One
at
a time, remove the wheels and apply fresh
grease
to
the wheel shaft and clevis pin. This
makes future wheel removal easier.
7.
Check the auger gear box's gear oil level. Move
the snowthrower
to
a level area. Unscrew the plug
(Figure
5-4,
Item
7)
from the front of the gear box.
Oil should just begin to flow out of the hole. If it
doesn't, add SAE 90 gear oil to the gear box. Fill
the gear box until the oil just begins to flow from