A gas outboard motor is a type of engine used to power boats and other watercraft. It operates by burning gasoline to create energy, which turns a propeller and propels the boat forward. These motors are typically mounted on the transom, or back, of the boat and can vary in size and horsepower, making them suitable for different types of vessels. Gas outboard motors are popular for recreational boating, fishing, and other water activities due to their ease of use and maintenance. They come in two-stroke and four-stroke designs, with four-stroke models generally being more fuel-efficient and environmentally friendly.