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Troubleshooting - Craftsman 917.370731 Owner's Manual

6.75 horsepower power-propelled 21" multi-cut rotary lawn mower

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Handle
..(__
bracket
/
Bolt
J
Knob
\
\
3.
Reinstall
knobs and carriage
bolts to lower
handle /handle
brackets
for safe keeping.
• When
setting
up your
handle
from
the
storage
position,
lower handle will require
manually
locking
into mowing
position.
IMPORTANT:
When
folding
the handle
for
storage
or transportation,
be sure to fold
the handle
as shown
or you may damage
the control
cables.
ENGINE
FUEL SYSTEM
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.
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
follow
the mix ratio
found
on sta-
bilizer
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
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.
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.
ACAUTION:
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
Does not start
1.
2.
3.
4.
5.
6.
7.
8.
Dirty air filter.
Out of fuel.
Stale fuel.
Water
in fuel.
Spark
plug wire disconnected.
Bad spark plug.
Loose
blade or broken
blade adapter.
Control
bar in released
position.
CORRECTION
1.
Clean/replace
air filter.
2.
Fill fuel tank.
3.
Empty
fuel tank and refill tank
with fresh,
clean gasoline.
4.
Empty
fuel tank and refill tank
with fresh,
clean gasoline.
5.
Connect
wire to plug.
6.
Replace
spark plug.
7.
Tighten
blade bolt or
replace
blade adapter.
8.
Depress
control
bar to
handle.
18

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