Back in the day the speed control was governed by a safety throttle that was spring loaded to shut down the throttle when reliest. Bowden wire was used to connect it to the carburetor. There was a spring loaded butten to lock it in position for starting. It is also recommended a kill switch be installed in case the driver unexpectedly leaves the boat. If a non-spring loaded throttle is used, the kill switch would be manditory. . . . . 😆
