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Engine, Other – Craftsman 917.388732 User Manual

Page 15

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ENGINE

FUELSYSTEM

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.

1. Drain the fuel tank.
2. 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 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 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

• 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

protecfive 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
engone and exhaust areas are still
warm.
A 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

CAUSE

CORRECTION

Does not start

1. Dirty air filter.

1. Clean/replace air filter.

2. Out of fuel.

2. Fill fuel tank.

3. Stale fuel.

3. Drain tank and refill with

fresh, clean fuel.

4. Water in fuei.

4. Drain fuel tank and

carburetor and refill tank
with fresh gasoline.

5. Spark plug wire is

disconnected.

5. Connect wire to plug.

6. Bad spark plug.

6. Replace spark plug.

7. Loose blade or broken

blade adapter.

7, Tighten blade bolt or

replace blade adapter.

8. Control bar in released

position.

8. Depress control bar to

handle.

9. Control bar defective.

9. Replace control bar.

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