Stihl MS 150 C Instruction Manual page 31

As soon as the engine runs
1
2
Press down trigger lockout and the
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blip the throttle trigger (2) – the
Master Control lever (1) moves to
the run position (F) and the engine
settles down to idling speed.
Pull the hand guard toward the
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handlebar to disengage the chain
brake.
NOTICE
Always disengage chain brake before
accelerating the engine. High revs with
the chain brake engaged (chain locked)
will quickly damage the clutch and chain
brake.
After a cold start, warm up the
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engine at varying speeds – your saw
is ready for operation.
MS 150 C
At very low outside temperatures
If idling behavior is erratic or
acceleration is poor:
Readjust carburetor if necessary,
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see "Adjusting the Carburetor".
If your saw is very cold (frost or ice
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on machine), start the engine and
keep it at a high idle speed (with
chain brake disengaged) until it
reaches normal operating
temperature.
Shut off the engine.
1
Move Master Control lever (1) to
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Stop 0.
If engine does not start
If you did not move the Master Control
lever from the choke closed
position (l) to the choke open
position (j) quickly enough after the
engine began to fire, the engine is
probably flooded.
Move Master Control lever to
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Stop 0.
Remove the spark plug – see
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"Spark Plug".
Dry the spark plug.
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Crank the engine several times with
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the starter to clear the combustion
chamber.
Refit the spark plug – see "Spark
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Plug".
Set Master Control lever to the
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starting throttle position (n) – even
if the engine is cold.
Now start the engine.
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If Fuel Tank Has Been Run Completely
Dry and Then Refueled
Press manual fuel pump bulb at
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least nine times.
Set the Master Control lever to the
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starting throttle position (n).
Move the choke lever to the closed
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position (l)
Give the starter rope two pulls.
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Move the choke lever to the open
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position (j).
Now start the engine.
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English
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