Adjusting The Throttle Cable - Stihl SP 451 Instruction Manual

English
As soon as the engine runs
N Blip the throttle trigger
immediately. The slide control
moves to the normal run position F
– and the engine settles down to idle
speed.
Make sure the carburetor is
correctly adjusted. The hook must
not move when the engine is
idling.
Your machine is now ready for
operation.
Stopping the Engine
N Push the slide control in the
direction of the arrow on the stop
symbol (h) to STOP-0.
At very low outside temperatures:
As soon as the engine runs:
N
Blip the throttle trigger to disengage
the starting throttle position. The
slide control moves to the normal
run position (F) – and the engine
settles down to idle speed.
N Open the throttle slightly.
N Warm up the engine briefly.
If the engine does not start
Choke knob
If you did not turn the choke knob to e
quickly enough after the engine began to
fire, the combustion chamber is flooded.
12
N Turn the choke knob to e.
N Select the starting throttle
position.
N Start the engine by pulling the
starter rope briskly – 10 to 20 pulls
may be necessary.
If the engine still does not start
N Move the slide control to STOP-0.
N Remove the spark plug – see
"Spark Plug".
N Dry the spark plug.
N
Open the throttle wide and hold it
that position.
N Crank the engine several times with
the starter to clear the combustion
chamber.
N Refit the spark plug – see "Spark
Plug".
N Connect the spark plug boot (press
it down firmly).
N Move the slide control to START.
N Set the choke knob to e – even if
the engine is cold.
N Start the engine.
Throttle cable adjustment
N Check adjustment of throttle cable –
see chapter on "Adjusting the
Throttle Cable".
Fuel tank run until completely dry
N After refueling, press the fuel pump
bulb at least five times – even if the
bulb is filled with fuel.
N Set the choke knob according to
engine temperature.
N Now start the engine.
SP 451, SP 481