
The kill switch on a bass boat is a simple ON/OFF switch that completes an electrical circuit to the motor when it’s on, allowing it to run. When the switch is off, it breaks the electrical circuit to the motor, preventing the engine from running. The kill switch is typically activated when a lanyard is pulled, or when the person driving the boat falls overboard. Some boats have a tethered cut-off switch, which is inexpensive but requires the driver to be physically connected to the kill switch.
| Characteristics | Values |
|---|---|
| Type of switch | ON/OFF toggle switch |
| How it works | Completes an electrical circuit to the motor when it's on, allowing it to run. When the switch is off, it breaks the electrical circuit to the motor, preventing the engine from running. |
| Activation | Activated when a lanyard is pulled or when the person driving the boat falls overboard and the tether pulls the clip out. |
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What You'll Learn

The kill switch is a simple ON/OFF switch
The kill switch is often activated by a lanyard or a clip attached to a tether, which is then attached to the person controlling the boat. If the person driving the boat falls overboard, the tether pulls the clip out and the kill switch snaps shut into its closed-circuit position (i.e. turning the switch on).
With an electronic system, the kill switch is a transducer operated by a small transponder housed in a tag or fob worn by the helmsman. When the transducer and transponder are in close proximity, the switch is on. If the helmsman moves too far from the switch, the transponder no longer communicates with the transducer and the switch turns off.
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The switch is activated when a lanyard is pulled
The kill switch on a bass boat is a simple ON/OFF switch that completes an electrical circuit to the motor when it’s on, allowing it to run. When the switch is off, it breaks the electrical circuit to the motor, preventing the engine from running.
With an electronic system, the kill switch is a transducer operated by a small transponder housed in a tag or fob worn by the helmsman. When the transducer and transponder are in close proximity, the switch is on. If the helmsman moves too far from the switch, the transponder no longer communicates with the transducer, and the switch turns off.
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The kill switch is a transducer operated by a small transponder
The kill switch on a bass boat is a simple ON/OFF switch that completes an electrical circuit to the motor when it’s on, allowing it to run. When the switch is off, it breaks the electrical circuit to the motor, preventing the engine from running. The kill switch is a transducer operated by a small transponder housed in a tag or fob worn by the helmsman. When the transducer and transponder are in close proximity, the switch is on. If the helmsman moves too far from the switch, the transponder no longer communicates with the transducer and the switch turns off.
The kill switch can also be activated by a lanyard or a tether attached to the person controlling the boat. If the driver falls overboard, the tether pulls the clip out and the kill switch snaps shut into its closed-circuit position (i.e. turning the switch on). Tethered cut-off switches are very inexpensive, with a typical kill switch costing under $25. However, the drawback is that you must be physically connected to the kill switch, so the tethered system can restrict movement around the boat.
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The kill switch is tethered to the person controlling the boat
The kill switch on a bass boat is a simple ON/OFF switch that completes an electrical circuit to the motor when it’s on, allowing it to run. When the switch is off, it breaks the electrical circuit to the motor, preventing the engine from running. The kill switch is often tethered to the person controlling the boat via a lanyard or a clip. If the driver falls overboard, the tether pulls the clip out and the kill switch snaps shut into its closed-circuit position, turning the switch on and cutting off the power. This prevents the boat from running away from the driver.
Tethered cut-off switches are very inexpensive, with a typical kill switch costing under $25. However, the drawback is that the driver must be physically connected to the kill switch, so the tethered system can restrict movement around the boat.
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The kill switch is located next to the ignition key
The kill switch on a bass boat is a simple ON/OFF switch that completes an electrical circuit to the motor when it's on, allowing it to run. When the switch is off, it breaks the electrical circuit to the motor, preventing the engine from running. The kill switch is usually located next to the ignition key.
The kill switch can be activated in a number of ways. One way is by a lanyard or a tether attached to the person controlling the boat. If the driver falls overboard, the lanyard or tether pulls a clip out, and the kill switch snaps shut into its closed-circuit position, turning the switch on. Another way to activate the kill switch is by using a small transponder housed in a tag or fob worn by the helmsman. When the transducer and transponder are in close proximity, the switch is on. If the helmsman moves too far from the switch, the transponder no longer communicates with the transducer and the switch turns off.
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Frequently asked questions
A kill switch is a simple ON/OFF switch that completes an electrical circuit to the motor when it’s on, allowing it to run. When the switch is off, it breaks the electrical circuit to the motor, preventing the engine from running.
There are two main types of kill switch: electronic and tethered. An electronic kill switch is operated by a small transponder housed in a tag or fob worn by the helmsman. When the transducer and transponder are in close proximity, the switch is on. If the helmsman moves too far from the switch, the transponder no longer communicates with the transducer and the switch turns off. A tethered kill switch is activated when a lanyard is pulled, normally by the driver falling out of the boat.
The advantage of an electronic kill switch is that you do not have to be physically connected to the kill switch, so you have more freedom of movement around the boat. However, an electronic kill switch is likely to be more expensive than a tethered kill switch.
A tethered kill switch is very inexpensive, typically costing under $25. However, you must be physically connected to the kill switch, so the tethered system can restrict movement around the boat.











































