0478 192 9810 A - EN
16
8.1 Ignition lock
Insert ignition key (1) in ignition lock (2).
The following four positions can be 
selected by turning the ignition key:
Engine off:
The engine is switched off or will 
be stopped. The lights are 
switched off and the ignition key can be 
removed.
Lights on (operation with 
lights):
Running engine:
The lights are switched on and the engine 
continues to run.
Engine off:
The lights are switched on.
Ignition on/engine running:
The ignition is switched on and 
the lights are switched off.
Following starting, the ignition key returns 
automatically to this position and the 
engine continues to run.
Start engine:
When all safety-relevant points 
for starting are fulfilled and the 
ignition key is turned to this 
position, the engine starts.
On releasing the ignition key, it returns 
automatically to the "engine running" 
position.
8.2 Throttle lever with choke function 
(RT 4097 S, RT 4097 SX, RT 4112 S)
Choke position:
Push throttle lever (1) fully forwards into 
the choke position (note detent).
8. Controls
Note
The ignition key can only be 
inserted and removed in the 
"engine off" (STOP) position.
The ignition lock can only be 
operated with the appropriate 
ignition key.
Never use a screwdriver or similar!
Note
When the engine is stopped, a 
signal tone is activated after 20 
seconds in the "lights on" and 
"ignition on" positions. The acoustic 
signal indicates that the battery is 
being discharged. To deactivate the 
signal tone, turn the ignition key to 
the "engine off" position or start the 
engine.
Note
When starting the machine when 
the engine is cold, the throttle lever 
must be set to the choke position 
on the models RT 4097 S, 
RT 4097 SX, RT 4112 S.
Avoid damage to the machine!
It must always be ensured that the 
throttle lever is not in the choke 
position when the engine is 
running. Immediately set the 
throttle lever to the MAX position 
after starting the engine.