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The DF100's innovation begins with a 118.9 cu. in. inline 4-cylinder Dual Overhead Cam (DOHC) powerhead with four-valves-per-cylinder. Suzuki's proven digital multi-point electronic fuel injection — controlled by a powerful computer receiving input from a network of sensors throughout the engine — optimizes performance under any engine load, temperature or altitude. Suzuki's experience with high-performance engines in marine, motorcycles and automobiles has led to the development of features like the DF100's tuned and water-cooled intake system and water-cooled fuel rail, which help to squeeze the most power out of every pony and the most miles from every gallon of fuel. In addition, Suzuki's race-proven 4-into-2-into-1 exhaust system optimizes exhaust flow for superior performance and smooth acceleration whether you're powering out of the hole, running at cruising speeds or flying across the waves at top speed. In addition, Suzuki's powerful 2.59:1 final drive ratio — with the ability to swing larger, higher pitch propellers — delivers the ideal combination of low-end power and top-end speed. |
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With over 10 years of real-world performance under their belt, Suzuki 4-strokes have earned a reputation for rock-solid reliability. Speaking of belts, features like the DF100's self-adjusting, oil-bathed timing chain (rather than a timing belt) remove this maintenance worry and help ensure season after season of hassle free operation. Further enhancing reliability over the long run are features like Suzuki's one-piece forged crankshaft and durable stainless steel water pump. An air-cooled, high-output 40-amp alternator keeps its cool as it keeps plenty of juice flowing to power the sophisticated marine electronics, pumps, lights and accessories found on today's fishing and family boats.
THREE NEW SUZUKI 4-STROKE OUTBOARDS FOR 2009 |
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"Our goal was to develop quicker, smaller and lighter four-cylinder outboards, while expanding our offerings in this important segment of the boating market. The DF70, DF80 and DF90 meet this goal and bring a new level of innovation, performance and efficiency to a range of popular boats." This new family of 4-strokes — which includes Suzuki's first ever 80-horsepower model — should be an ideal match for a variety of vessels, including small center consoles and runabouts, flats boats, bay boats, pontoon boats and a range of aluminum boats. To make these new motors lighter and more compact, Suzuki engineers began with a new 91.7 cu. in. inline four-cylinder Dual Overhead Cam (DOHC) powerhead with four valves per cylinder. By incorporating an offset drive shaft and a two-stage gear reduction, Suzuki engineers moved the engine's center of gravity forward and reduced the overall dimensions of the outboard. The new DF90, for example, is almost three inches shorter than Suzuki's previous 90-hp 4-stroke, and more thannine inches shorter than some competitive 90hp models. This is an important consideration on boats with limited transom clearance, such as flats boats with poling platforms. This compact design means the new DF70, DF80 and DF90 will look better, fit better and balance better on a wide range of popular craft. Better balance also means reduced engine vibration and greater directional stability, for a more enjoyable boating experience. A new lightweight cowl and lower unit help trim these motors down to a target weight of around 341 lbs. — making Suzuki's new DF90 the lightest 4-stroke outboard in its power class. |
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In addition, Suzuki's streamlined new gear case (first seen on Suzuki's flagship DF300 V6) reduces drag by 36-percent, resulting in faster acceleration and greater speed. The Suzuki DF70, DF80 and DF90 also feature a powerful 2.59:1 final drive ratio, delivering the perfect balance of low-end muscle and top-end performance on a wide range of fresh and saltwater boats. Stretching the fuel budget has never been more important to boaters than it is today, so Suzuki engineers set out to make the DF90 the most fuel-efficient outboard in the category. Suzuki's proven multi-point sequential electronic fuel injection and solid-state ignition combine to optimize fuel efficiency across the performance range. This trio of new outboards also incorporates Suzuki's new Lean Burn Control Technology — a feature that predicts fuel needs according to operating conditions and allows the engine to operate on a very lean air-fuel ratio. This feature provides a significant improvement in fuel economy — especially at cruising speeds — and will help boaters and anglers spend more time on the water and less time at the fuel dock. |
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Suzuki also added a new, user-adjustable tilt limit switch that prevents the motor from being tilted beyond a predetermined point. This simple change can go a long way in preventing accidental damage to the boat or the motor when launching, retrieving and trailering. Suzuki's new DF70, DF80 and DF90 are the only outboards in the class equipped with oil-bathed, self-adjusting timing chains, instead of traditional timing belts. Automatic hydraulic tensioners ensure proper adjustment at all times, minimizing required maintenance. Dual engine flush ports make flushing the cooling system a breeze, whether the boat is on the trailer or in the water. These new motors also feature bold new graphics, designed to compliment the appearance of any boat. Suzuki's special anti-corrosion finish — applied directly to the aluminum alloy and layered with an epoxy primer undercoat, acrylic resin black metallic basecoat and acrylic resin clear topcoat — protects the outboard's exterior from constant exposure to saltwater. These extensive anti-corrosion measures ensure that the DF70, DF80 and DF90 keep looking good — even in the harsh marine environment.
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