2025 Yamaha F4SMHA

The 2025 Yamaha F4SMHA is a new, reliable outboard motor that offers efficient performance with its 4 horsepower, single-cylinder engine. It has a displacement of 139 cc, featuring a bore and stroke of 2.44 inches and 1.81 inches, respectively. The engine is equipped with a carburetor fuel induction system and is cooled by an open-loop water system, ensuring consistent operation under various conditions. This model is designed with a manual trim and tiller steering, making it straightforward to use, especially for small boats. It offers a compression ratio of 8.9:1 and a gear ratio of 2.08:1, facilitating smooth and responsive control during boat operations. It starts with a pull mechanism, and although compact, it includes a 6-amp alternator for power supply. The Yamaha F4SMHA is available in the classic Yamaha Gray color, with no additional cost. Its shaft length is standardized at 15 inches, and it is not equipped for counter-rotating use. This model comes with a reassuring 36-month warranty, reflecting Yamaha's confidence in its durability and performance, making it a valuable choice for those seeking a dependable outboard motor.