Engine Fuel System; Troubleshooting - Craftsman EZ3 917.377284 Owner's Manual

ENGINE
FUEL SYSTEM
IMPORTANT: It is importantto prevent
gum depositsfrom formingin essentialfuel
systemparts such as carburetor,fuel filter,
fuel hose,or tank duringstorage Also,
experienceindicatesthat alcoholblended
fuels (calledgasohotor usingethanol or
methanol)can attractmoisturewhich leads
to separationandformationof acidsduring
storage_ Acidicgas can damagethe fuel
systemof an enginewhile in storage.
- Drainthe fuel tank,
o 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 minimizing the formation of
fuel gum deposits during storage, Add
stabilizer to gasoline in fuel tank or storage
container. Always fol!ow the mix ratio
found on stabilizer container. Run engine
at least 10 minutes after adding stabilizer
to allow the stabilizer to reach the carbure-
tor. Do not drain the gas tank and
carburetor if using fuel stabilizer.
ENGINE OIL
Drain oil (with engine warm) and replace
with clean engine oil, (See "ENGINE" in
the Customer Responsibilities section of
this manual),
CYLINDER
° Remove spark plug
o Pour one ounce (29 ml) of oil through
spark plug hole into cylinder
• Pull 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 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.
CAUTION: Never store the lawn mower
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
TROUBLESHOOTING CHART
PROBLEM
Does not start
CAUSE
° Dirty air fitten
° Out of fue!.
° Stale fuel.
• Water in fuel,
D
o
0
o
o
0
0
0
Spark plug wire is
disconnected.
Bad spark plug
Loose blade or broken blade =
adapter,
Control bar in released °
position.
Control bar defective,
CORRECTION
Clean/replace air filter,
Fill fuel tank_
Drain tank and refill with
fresh clean fuel,
Drain fuel tank and
carburetor and refill tank
with fresh gasoline.
Connect wire to plug.
Replace spark plug,
-lighten blade bolt or
replace blade adapter,
Depress control bar to
handle.
Replace control barn
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