DF115B - Stealth Line

The new Suzuki outboard engine, the DF115B, features updates that further improve its overall performance. The compression ratio is now 10.6/1, allowing this over 2-liter outboard engine to further enhance top speed and acceleration while optimizing thermal efficiency.

Fuel efficiency has also been improved compared to the well-known DF115A model. Tests have demonstrated a 5 to 6% reduction in fuel consumption for the DF115B across mid to high speed ranges.

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

The new direct ignition reduces the number of parts and wiring, resulting in better spark generation and improved combustion efficiency.

The main difference from its "big brother" DF140B is that it produces its power over a lower and wider RPM range.