Suzuki DF70A Owner's Manual page 46

(4) Turn the emergency key to the counterclock-
wise within 10 seconds after entering the 4th
digit of the passcode. The buzzer emits two
(2) short sounds when the passcode input is
successful, and the engine can then be
started.
If the emergency key is not operated within
10 seconds, the buzzer sounds five (5) times
followed by another beep, and the input
operation is cancelled. In this case, repeat
the procedure beginning at Step 2.
PUSH
START
STOP
46
ON & OFF
To start the engine:
(5) Install the lock plate 3 on the emergency
stop switch.
(6) Make sure the motor is in "NEUTRAL".
(7) Push the emergency key to start the engine.
PUSH
START
STOP
ON & OFF