Carburetor Adjustment - Craftsman 358.740160 Manual Del Operador

CARBURETOR ADJUSTMENT

WARNING: The chain will be moving
during most of this procedure. Wear
your protective equipment and observe
all safety precautions. The chain must
not move at idle speed.
Indications for idle speed adjustment:
The carburetor has been carefully set at the
factory. Adjustments may be necessary if you
notice any of the following conditions:
The chain moves at idle. See IDLE SPEED-T

ADJUSTMENT procedure.
The saw will not idle. See IDLE SPEED-T

ADJUSTMENT procedure.
Idle speed-T adjustment:
Allow the engine to idle. If the chain moves, the
idle is too fast. If the engine stalls, the idle is
too slow.
Adjust the speed until the engine runs without
chain movement (idle too fast) or stalling (idle
too slow).
The idle speed screw is located in the area
above the primer (air purge) bulb and is labeled
"T".
Turn the idle speed screw (T) clockwise to
increase the engine speed.
Turn the idle speed screw (T) counterclockwise
to decrease the engine speed.
STORAGE
WARNING: Stop the engine and
allow it to cool. Secure the unit before
storing or transporting it in a vehicle.
Store the unit and fuel in an area where
fuel vapors cannot reach sparks or open
flames from water heaters, electric
motors, switches, furnaces, etc.
WARNING: Store the unit with all
guards in place. Position so that any
sharp object cannot accidentally cause
injury to passersby. Store the unit out of
reach of children.
Before storing, drain all fuel from the unit.

Start the engine and allow it to run until it
runs completely out of fuel.
Clean the unit before storing. Pay particular

attention to the air intake area, keeping it free
of debris. Use a mild detergent and sponge to
clean the plastic surfaces.
Ensure the machine is cleaned and that a

complete service is carried out before long-
term storage.
The guide bar and chain should be covered

with a scabbard when the machine is being
transported or in storage in order to prevent
accidental contact with the sharp chain. Even
a non-moving chain can cause serious cuts
to yourself or others that make contact with
an exposed chain.
CAUTION: It is important to prevent gum
deposits from forming in essential fuel system
parts such as the carburetor, fuel filter, fuel
hose, or fuel tank during storage. Alcohol
blended fuels (called gasohol) or using ethanol
or methanol can attract moisture which leads to
fuel mixture separation and formation of acids
during storage. Acidic gas can damage the
engine.
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