Engine Oil; Troubleshooting Chart - Craftsman 917.389390 Owner's Manual

ENGINE
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, experience indicates that 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_
• Drain the fuel tank_
• Start the engine and let it run until the
fuel lines and carburetor are empty.
• Never use engine or carburetor cleaner
products in the fuel tank or permanent
damage may occur.
• Use fresh fuel next season.
NOTE: Fuel stabilizer is an acceptable
alternative in min{mizing the formation of
fuel gum deposits during storage. Add
stabilizer to gasoline in fuel tank or
storage 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 carburetor_ Do not drain the gas tank
and carburetor if using fuel stabilizer°
ENGINEOIL
Drain oil (with engine warm) and replace
with clean engine oil (See "ENGINE" in
the Maintenance section of this manual).
CYLINDER
• Remove spark plugo
• Pour one ounce (29 ml) of oil through
spark plug hole into cylinder.
• Pult starter handle slowly a few times to
distribute oil
° Replace with new spark plug.
OTHER
• Do not store gasoline from one season
to another.
• Replace your gasoline can if your can
starts to rust. Rust and/or dirt in your
gasoline will cause problems.
° If possible, store your unit indoors and
cover it to give protection from dust and
dirt°
• Cover your unit with a suitable protec-
tive 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.
m_owCAUTION: Never store the lawn
er with gasoline in the tank inside a
building where fumes may reach an open
flame or spark. Allow the engine to cool
before storing in any enclosure.
TROUBLESHOOTINGCHART
CAUSE
PROBLEM
Doesn_sta_
1, Dirty air filter,
2, Out of rue{.
3. Stale fuel.
4_ Water in fuel
5_ Spark plug wire is
disconnected.
6, Bad spark plugr
Loose blade or broken blade'
adapter_
8, Control bar in released
position,
9o Control bar defective.
15
CORRECTION
1, Clean/replace air filter.
2. Fill fuel tank°
3, Drain tank and refill with
fresh clean fuel.
4o Drain fuel tank and
carburetor and refill tank
with fresh gasoline.
5, Connect wire to plug.
6o Replace spark plug_
7. Tighten blade bolt or
replace blade adapter,
8, Depress control bar to
handle.
9. Replace control bar,