TOHATSU 50 Owner's Manual page 41

(3) Feed fuel to the carburetor by squeezing the primer bulb.
Ensine side
Fueilan'k side
(4) Install a lock in a safety switch.
A
CAUTION
Be sure to connect the emergency stop line to your wrist. The engine
is shut down if the stop line switch is disconnected.
This is a safety measure, designed to protect the driver from propeller
injury if he is thrown overboard.
The engine will not start unless this switch has been properly
connected and locked beforehand.
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AA
WARNING-DAILY CHECK
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Before moving out with the boat, confirm if the safety switch works
normally by repeating the engine start and stop in several times.
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