Boat engine controls are an essential aspect of operating a boat, allowing the captain to manage the speed, direction, and performance of the vessel. Here are some key components and aspects of boat engine controls:

1. Throttle Control: This lever adjusts the engine's power, increasing or decreasing speed. It's similar to the gas pedal in a car.
2. Gear Shift: This control changes the engine's gears, allowing the boat to move forward, reverse, or stay in neutral.
3. Steering System: This is typically a wheel or tiller that controls the direction of the boat. Modern boats may also have electronic steering systems.
4. Trim and Tilt Controls: These adjust the angle of the outboard motor or stern drive, optimizing performance and fuel efficiency. Trim adjusts the angle while the boat is moving, and tilt lifts the motor out of the water when not in use.
5. Ignition Switch: This is used to start and stop the engine.
6. Control Cables: These cables connect the controls to the engine. They need to be in good condition for smooth operation.
7. Electronic Controls: Modern boats often have digital or electronic controls that provide precise handling and may include additional features like engine diagnostics, autopilot, and integration with navigation systems.
8. Safety Features: These may include emergency stop switches (kill switches), alarms, and other safety systems to prevent accidents.