Engine; Fuel System; Cylinder; Troubleshooting - Craftsman 917.370441 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, fue! hose, or tank during storage.
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.
• Empty the fuel tank by starting the en-
gine and letting 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 al-
ternative in minimizing the formation of fuel
gum deposits during storage. Add stabilizer
to gasoline in fuel tank or storage container.
Always followthe 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 empty the
gas tank and carburetor ifusing fuel stabilizer.
ENGINE OIL
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.
BATTERY
Disconnect the battery from the engine
connector and charge battery 48 hours.
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 protect it 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.
&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 - See appropriate section in manual unless directed
to a Sears Parts & Repair Center.
PROBLEM CAUSE CORRECTION
,
2.
3.
4.
5.
6.
7.
8.
9.
Does not start
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.
10. Fuel valve lever (if so
equipped) in OFF position.
11. Weak battery (if equipped).
12. Disconnected battery
connector (if equipped).
13. Blown fuse (if equipped).
,
2.
3.
4.
5.
6.
7.
8.
9.
Clean/replace air filter.
Fill fuel tank.
Empty fuel tank and refill tank
with fresh, clean gasoline.
Empty fuel tank and refill tank
with fresh, clean gasoline.
Connect wire to plug.
Replace spark plug.
Tighten blade bolt or
replace blade adapter.
Depress control bar to
handle.
Replace control bar.
10. Turn fuel valve lever
to the ON position.
11. Charge battery.
12. Connect battery to engine.
13. Replace fuse.
19