10 Jan 2012

DF300 Provides The Ultimate in Efficiency and Power

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The original, Innovation Award winning, DF300 broke new ground. It was the very first 220.7kW (300 PS) 4-stoke outboard and it set a new benchmark for performance and power from a compact and lightweight outboard.
Now Suzuki has taken this ultimate outboard to the next level. The addition of Suzuki’s Lean Burn Control technology and a new O2 (Oxygen) Sensor Feedback Control System provides boaters with a dramatic improvement in fuel economy as well as environmentally responsible operation, further enhancing the overall performance and value of the DF300, Suzuki’s flagship outboard motor.

Suzuki’s innovative Lean Burn Control System was first introduced on the DF90/80/70 to great acclaim from boaters and the media alike. It predicts fuel needs according to operating conditions allowing the engine to run on a more efficient fuel mixture through the use of a lean air-fuel ratio. It delivers its benefits over a wide operating range, providing significant improvements in fuel economy from low-speed operation into the cruising range. Combining this system with the Suzuki Precision Control, electronic throttle and shift system, allows control of the fuel and air flow electronically to increase the limit of the controllable revolution range further improving fuel economy over a wider range. This combination also delivers smooth power transitions when more power is required from the outboard.
In-house testing shows that while cruising, the new DF300 is 14% more economical than its predecessor without sacrificing any of the original DF300’s power.

The new DF300 is the first Suzuki outboard equipped with an O2 sensor, which enables emissions to be cleaner and more stable. The system controls the air to fuel ratio across each of the engine’s operating ranges providing an optimum amount of fuel to the engine regardless of rpm.

Water in the fuel can be the source of poor combustion, lower power output, and corrosion. To protect the engine from moisture in the fuel, the DF300 is the first Suzuki outboard to utilize a water detecting fuel filter that alerts the operator with both visual and audio warnings when water is present in the fuel.

Suzuki’s advanced four-stroke technologies deliver cleaner and more efficient operation that conforms to EURO 1 Emissions Standards (EU Directive 2003/44/EC) – the EU emission standards (exhaust gases and noise levels) set by the European Parliament and the Council and has received three-star ratings from the California Air Resources Board (CARB).

The DF300 is designed with a large air induction port to maximize airflow into the engine in order to obtain maximum power output. The increased airflow produces more low- to mid-range torque and provides a wide power band that is necessary in an outboard engine. Suzuki also designed the system with a water separator, which aids in keeping water out of the electronic throttle body and a heat shield to keep intake air from being heated by the engine.

The gear case on the DF300 utilizes a hydrodynamic design that reduces drag created as the lower unit moves through the water. This contributes to faster acceleration and increased speed.

The outside of the DF300 is covered with Suzuki’s anti-corrosion finish that is specially formulated to increase the durability of the engine and help protect parts of the aluminum exterior that are constantly exposed to saltwater. This advanced finish offers maximum bonding of the finish to the outboard’s aluminum surface, creating an effective treatment against corrosion.

Our flagship V6 range provides the perfect power for both leisure and commercial craft. As part of our sole supplier agreement with the London 2012 Olympic and Paralympic Games Sailing Regatta, the new DF300 Lean Burn will be used to power the press and VIP boats at the event.

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