Troubleshooting - Craftsman 917.389151 Owner's Manual

ENGINE CYLINDER
FUELSYSTEM
IMPORTANT: it is important to prevent bum
deposits from forming in essential juel system
parts such as carburetor,fuel filter, fuel hose,
or tank duringstorabe. Also, experience
indicatesthat alcoiol blinded fuels (called
gasohol or usingethanol or methanol) can
attract moisturewhich leads to separation and
formationof acids duringstorage. 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
altemative in minimizing the formation of fuel
gum deposits duringstorage. 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.
ENGINE OIL
Drain oil (with engine warm) and replace with
clean engine oil. (See "ENGINE" in the
Customer Responsibilitiessection of this
manual).
TROUBLESHOOTING CHART
• Remove spark plug.
• Pour one ounce (29 mi) of oil through spark
plug hole into cylinder.
• Pullstarter handle slowly a few times to
distributeoil.
• Replace with new spark plug.
OTHER
• Do not store gasoline from one season to
another.
• Replace your gasoline can ifyour can starts
to rust. Rust and/or dirtin your gasoline will
cause problems.
• If possible,store your unit indoors and cover
it to give protectionfrom dust and dirt.
• Cover your unitwith a suitable protective
cover that does not retain moisture. Do not
use plastic. Plasticcannot breathe which
allows condensationto form and willcause
your unitto 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.
PROBLEM CORRECTION
Does not start
CAUSE
• Dirty air filter.
• Out of fuel.
• Stale fuel.
Water in fuel.
Spark plug wire is
disconnected.
Bad spark plug. •
Loose blade or broken blade °
adapter.
Control bar in released •
position.
Control bar defective. •
• 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.
"Hghten blade bolt or
replace blade Adapter.
Depress contr8l bar to
handle.
Replace control bar.
15