What does the Jet control lever (black handle) control on the boat?

The Jet control lever, typically a black handle on a boat, is primarily responsible for controlling the directional movement of the watercraft. This lever adjusts the positioning of the jet nozzle, allowing the operator to steer the boat by directing the flow of water that propels it forward. When the lever is moved, it changes the angle of the jet stream, enabling precise control over the vessel's navigation, making it essential for maneuvering in various water conditions or during docking.

While it may seem that speed is also impacted by the lever, the primary function is to guide the direction of movement. The boat's speed is usually controlled through separate throttle controls or another mechanism. Moreover, fuel management is independent of the jet control lever, and cargo space is unrelated, as it pertains to storage capacity rather than propulsion or navigation functionality. Thus, the role of the jet control lever is fundamentally about enabling the desired directional control on the water.