SP 451, SP 481
English
12
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.
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.
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.
Make sure the carburetor is
correctly adjusted. The hook must
not move when the engine is
idling.
