Troubleshooting - Craftsman 917.378990 Owner's Manual

Operator presence
control b ar
FORVVARD
Upper FOR
Lower
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handle
Mowing
position
FUEL SYSTEM
IMPORTANT: It is important to prevent
gum deposits from forming in essential
fuel system parts such as carburetor, fuel
filter, fuel hose, or tank during storage.
Also, alcohol blended fuels (called gasohol
or using ethanol or methanol) can attract
moisture which leads to separation and
formation of acids during storage. Acidic
gas can damage the fuel system of an
engine while in storage.
o Empty the fuel tank by starting the en-
gine and letting it run until the fuel lines
and carburetor are empty.
o Never use engine or carburetor cleaner
products in the fuel tank or permanent
damage may occur.
o Use fresh fuel next season.
NOTE: Fuel stabilizer is an acceptable
alternative in minimizing the formation
of fuel gum deposits during storage. Add
stabilizer to gasoline in fuel tank or stor-
age container. Always follow the mix ratio
found on stabilizer container. Run engine
at least 10 minutes after adding stabilizer
to allow the stabilizer to reach the car-
buretor. Do not empty the gas tank and
carburetor if using fuel stabilizer.
ENGINE OraL
Drain oil (with engine warm) and replace
with clean engine oil. (See "ENGINE" in
the Maintenance section of this manual).
CYLINDER
1. Remove spark plug.
2. Pour one ounce (29 ml) of oil through
spark plug hole into cylinder.
3. Pull starter handle slowly a few times
to distribute oil.
4. Replace with new spark plug.
OTHER
o Do not store gasoline from one season
to another.
o Replace your gasoline can if your can
starts to rust. Rust and/or dirt in your
gasoline will cause problems.
o If possible, store your unit indoors and
cover it to protect it from dust and dirt.
o Cover your unit with a suitable protective
cover that does not retain moisture. Do
not use plastic. Plastic cannot breathe,
which allows condensation to form and
will cause your unit to rust.
IMPORTANT: Never cover mower while
engine and exhaust areas are still warm.
_1,CAUTION: Never store mower with
gasoline in the tank inside a building
where fumes may reach an open flame or
spark. Allow the engine to cool before stor-
ing in any enclosure.
TROUBLESHOOTING - See appropriate section in manual unless directed
PROBLEM
Does not start
to a Sears Parts & Repair Center.
CAUSE
1. Dirty air filter.
2. Out of fuel.
3. Stale fuel.
4. Water in fuel.
CORRECTION
1. Clean/replace air filter.
2. Fill fuel tank.
3. Empty fuel tank and refill tank
with fresh, clean gasoline.
4. Empty fuel tank and refill tank
with fresh, clean gasoline.
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