Craftsman 917.37658 Manual De Usuario

17

FUEL SYS TEM
IMPORTANT:  It is important to prevent 
gum deposits from forming in essential fuel 
system parts such as carburetor, fuel fi lter, 
fuel 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 car bu re tor are empty.

•   Never use engine or carburetor cleaner 

prod ucts in the fuel tank or permanent 
damage may occur.

•   Use fresh fuel next season.
NOTE:  Fuel stabilizer is an acceptable al-
ternative in min i miz ing the formation of fuel 
gum deposits during stor age.  Add stabilizer 
to gasoline in fuel tank or storage container.  
Always follow the mix ratio found on stabilizer 
container.  Run engine at least 10 min utes 
after adding stabilizer to allow the stabilizer to 
reach the carburetor.  Do not empty the gas 
tank and carburetor if using fuel stabilizer.

NOTE:  

FRESH START

TM

 fuel cap and 

cartridge system automatically drips con-
centrated fuel preserver into your fuel tank 
and is an acceptable alternative to adding 
fuel stabilizer.

ENGINE OIL
Drain oil (with engine warm) and replace 
with clean engine oil.  (See “ENGINE” in 
the Maintenance section of this man ual).
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 dis trib ute oil.

4.   Replace with new spark plug.

•   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 pro tec -

tive cover that does not retain mois ture.  
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 gaso line in the tank in side a build ing 
where fumes may reach an open fl ame 
or spark.  Allow the engine to cool before 
storing in any enclosure.

Does not start        1.   Dirty air fi lter.                           1.   Clean/replace air fi lter.

                                2.   Out of fuel.                               2.   Fill fuel tank.
                                3.   Stale fuel.                                 3.   Empty fuel tank and refi ll tank
                                                                                            with fresh, clean gasoline.
                                4.   Water in fuel.                           4.   Empty fuel tank and refi ll tank
                                                                                            with fresh, clean gasoline.
                                5.   Spark plug wire is                    5.   Connect wire to plug.
                                      disconnected.                               
                                6.   Bad spark plug.                       6.   Replace spark plug.
                                7.   Loose blade or broken             7.   Tighten blade bolt or
                                      blade adapter.                                replace blade adapter.  

                                8.   Control bar in released            8.   Depress control bar to
                                      position.                                         handle.
                                9.   Control bar defective.               9.   Replace control bar.
                                10. Fuel valve lever (if so               10. Turn fuel valve lever
                                      equipped) in OFF position.            to the ON position.
                                11. Weak battery (if equipped).     11. Charge battery.
                                12. Disconnected battery               12. Connect battery to engine. 
                                      connector (if equipped).