As you depress the gas pedal, the throttle body opens wider, allowing more oxygen into the engine, while letting up on the gas decreases the amount of air entering the engine, reducing power.

With two marine-approved Q tagg replacement actuators now available – the ASAC 120 and ASAC 420 models – owners and operators ...

Most gasoline engines have a throttle body to control airflow into the cylinders. When the driver presses the accelerator pedal, the throttle plate opens to allow more air in, and the engine ...