DF115B

The new Suzuki outboard engine, the DF115B, benefits from improvements that further enhance its overall performance. The compression ratio has been increased to 10.6/1, allowing this over 2-liter outboard engine to improve top speed and acceleration while optimizing thermal efficiency.

The fuel efficiency has also been improved compared to the well-known DF115A model from the brand. Testing has shown a 5 to 6% reduction in fuel consumption for the DF115B across medium to high speed ranges.

The new cowling adopts a special air intake that optimizes water separation while reducing intake air temperature, which enables higher power output at intermediate speeds. A resonator system further reduces engine noise at all speeds.

The new direct ignition system reduces the number of parts and wiring, improving spark generation and combustion efficiency.

The main difference with its "big brother" DF140B is that it achieves its power over a narrower and lower RPM range.