Engine Management; Adjusting The Carburetor; Spark Arresting Screen In Muffler - Stihl MM 56 Manual De Instrucciones

Engine Management

Exhaust emissions are controlled by the
design of the engine and components
(e.g. carburation, ignition, timing and
valve or port timing).
MM 56 C

Adjusting the Carburetor

The carburetor has been set at the
factory to provide an optimum fuel-air
mixture under most operating
conditions.
Adjusting Idle Speed
Engine stops while idling
Warm up the engine for about
N
3 minutes.
Turn the idle speed screw (LA)
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slowly clockwise until the engine
runs smoothly – the MultiTool must
not run.
MultiTool runs when the engine is idling
Turn the idle speed screw (LA)
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counterclockwise until the MultiTool
stops moving and then turn the
screw about another 1/2 to 3/4 turn
in the same direction.
WARNING
If the MultiTool continues to run when
the engine is idling, have your machine
checked and repaired by your servicing
dealer.
Spark Arresting Screen in
Muffler
If the engine is down on power,
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check the spark arresting screen in
the muffler.
Wait for the muffler to cool down.
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Use the combination wrench to
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unscrew the spark arrestor.
Clean the spark arrestor screen. If
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the screen is damaged or heavily
carbonized, fit a new one.
Insert the spark arrestor and tighten
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it down firmly with the combination
wrench.
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