![]() ![]() Electronic fuel injection: This is the most advanced and efficient fuel delivery system.Ĭarbureted fuel systems are outdated and mostly found on older boats.Direct fuel injection engines: These offer reduced emissions and improved fuel efficiency.Carbureted fuel systems: These are less efficient and produce higher emissions.There are three primary fuel delivery systems for boat motors: Fuel Delivery Systemsįuel delivery systems play a significant role in boat motor performance, i.e., fuel efficiency, emissions, and throttle response. Outside of a boat’s size and weight, it’s also vital to consider the manufacturer’s recommendations for maximum horsepower and confirm that the chosen motor is within the suggested range. The heavier the boat, the more motor power is required. Smaller boats can be powered by smaller motors: Fair warning: overpowering a small boat negatively impacts both performance and safety.Larger boats will require more powerful motors for propulsion.Boat Size and Weightīoat size and weight are crucial in determining the appropriate boat motor type based on maximum horsepower rating and overall performance. When selecting a boat motor, you’ll need to account for the following factors: boat size and weight, fuel delivery systems, and the boat’s intended use. Restricted availability in the boat model optionsįactors to Consider When Choosing a Boat Motor.Enhanced safety for swimmers and marine life.Highly maneuverable even at slow speeds.Yamaha produces many of the most popular jet-drive engines. Instead of a traditional propeller, jet drive engines use water propulsion for superior performance. Jet drive engines are designed for high-performance and shallow water applications, making them a popular choice for personal watercraft. More parts (more opportunities for issues).Somewhat adjustable for shallow water operation.Mercury makes a range of sterndrive motors.Ī sterndrive motor consists of an inboard engine located within the boat and an external drive unit attached to the transom, featuring a gearbox, vertical driveshaft, and propeller. Sterndrive motors, also known as inboard/outboard engines, combine elements of both inboard and outboard engines, offering excellent versatility and performance for pleasure boats. A larger draft makes them not suitable for shallow water. ![]()
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