English
Starting / Stopping the
Engine
Positions of Master Control Lever
Setting the Master Control Lever
To move the Master Control lever from the normal run position (F) to choke closed (l), press down the throttle trigger lockout and squeeze the throttle trigger at the same time and hold them in that position – now set the Master Control lever.
135BA029 LÄ
NLift out the shutter (in front of spark plug) vertically.
NTurn the shutter 180°. N Refit the shutter.
NRefit the carburetor box cover and secure it with the knob.
Heated air is now drawn in from around the cylinder to warm the carburetor – this helps prevent carburetor icing.
NOTICE
At temperatures above +70 °F (+ 20°C), always close the shutter again. This is necessary to avoid engine running problems and overheating.
34
STOP 
0
001BA140 KN
Stop 0 – engine off – the ignition is switched off
Normal run position (F) – engine runs or can fire.
Starting throttle (n) – this position is used to start a warm engine. The Master Control lever moves to the normal run position as soon as the throttle trigger is squeezed.
Choke shutter closed (l) – this position is used to start a cold engine.
To select the starting throttle
position (n), move the Master Control lever to choke closed (l) first, then push it into the starting throttle position (n).
The Master Control lever must be in the choke closed position (l) for the changeover to the starting throttle position (n).
The Master Control lever moves from the starting throttle position (n) to the run position (F) when you press down the throttle trigger lockout and blip the throttle trigger at the same time.
To switch off the engine, move the Master Control lever to Stop (0).
Choke shutter closed (l)
–if the engine is cold
–if the engine stalls when you open the throttle after starting.
–if the fuel tank was run until empty (engine stopped).
Starting throttle position (n)
–if the engine is warm, i.e. if it has been running for about one minute.
–after engine begins to fire,
–after clearing a flooded combustion chamber.
MS 250
