36
English / USA
FS 90, FS 90 R
Detaching the Unit from the 
Shoulder Strap
: Press the bar on the spring hook (1) 
and pull the carrying ring (2) out of 
the hook.
Controls
Control handle on bike handle
Throttle trigger interlock (1)
Throttle trigger (2) 
Slide control (3)
Control handle on drive tube
Throttle trigger interlock (1)
Throttle trigger (2) 
Slide control (3)
Positions of slide control
STOP-O (4) – engine off – the ignition is 
switched off
# – normal run position (5) – the engine 
is running or can start
START (6) - the ignition is switched on, 
the engine can start
Starting / Stopping 
the Engine
3
STOP
56
4
7
002BA182 KN
1
2
START
STOP-
3
STOP
2
5
6
4
7
002BA181 KN
START
STOP-
1