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This trio of new 4-strokes, available in Europe in 2009, has been designed from the ground up, and showcases many of the engineering achievements that have made Suzuki the leader in 4-stroke outboard technology. In keeping with Suzuki´s belief that the best technology shouldn´t be reserved only for the biggest engines, the new DF90, DF80 and DF70 also offer important new features designed to make them faster, lighter and more efficient.
Suzuki started the marine industry´s 4-stroke revolution ten years ago with the introduction of its Innovation Award-winning, fuel-injected DF60 and DF70 outboards. Now Suzuki is re-inventing the category with the launch of the New Generation 4-strokes – the DF90, DF80 and DF70. The fact that two of these new outboards (DF70 and DF90) replace existing 4-strokes proves that Suzuki is not resting on its laurels, but is instead striving to constantly power forward with new and better technology for boaters.
“These new motors demonstrate our commitment to constant improvement and innovation to deliver what the market wants in terms of exciting performance together with fuel efficiency.” says Masahiro Yamamoto, Group Leader, Europe Marketing Group, Marine & Power Products. “Our goal was to break the industry standards and to develop smaller and lighter four-cylinder outboards, while expanding our offering in this important segment of the boating market. The DF90, DF80 and DF70 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 boats, including centre consoles, FRP Pleasure, Aluminum and RIBs.
Fuel efficient
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 optimise 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 brings a new level of 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.
Compact in size
To make these new motors lighter and more compact, Suzuki engineers began with a totally new 1.5 litre 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 centre of gravity forward and minimised the overall dimensions of the outboard.
The new DF90, for example, is almost 8cm shorter than Suzuki´s previous 90 hp 4-stroke. This is an important consideration on boats with limited transom clearance.
This compact design means the new DF90, DF80 and DF70 will look better, fit better and balance better on a wide range of popular boats. 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 155kg. – making Suzuki´s new DF90 the lightest 4-stroke outboard in its power class.
Best in class performance
When it comes to on-the-water excitement, Suzuki´s new four-cylinder DOHC 16-valve powerhead is designed to combine compact size with best-in-class performance. A new under cowl airflow design helps the engine “breathe” better, ensuring an optimum fuel/air ratio at all engine speeds.
Suzuki´s two-stage gear reduction system delivers the torque to swing large diameter, high-pitch propellers designed for the DF90, DF80 and DF70, for more propulsion where it matters most. In addition, Suzuki´s streamlined new gear case (first seen on Suzuki´s flagship DF300 V6) reduces drag by 36%, resulting in faster acceleration and greater speed. The Suzuki DF90, DF80 and DF70 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.
Clean and fuel efficient
Suzuki engineers also set out to improve fuel economy on the DF90, DF80 and DF70 by increasing mechanical efficiency. They designed a new oil pump that delivers greater mechanical efficiency and improved the internal hydrodynamics of the lubrication system allowing oil to move through the system with less resistance. And like all Suzuki fuel-injected 4-stroke outboards, these new engines are clean as well as efficient to meet the EURO emissions standard set by the European Parliament and the Council.
New shift system
Making these outboards even more dependable, low-maintenance and user friendly was a primary goal for this new generation of Suzuki 4-strokes. Engineers began by redesigning the shift transmission system, increasing rigidity and tightening the tolerances to reduce play between the parts.
These changes have resulted in a 40% improvement in gear transfer (compared to the original DF90), delivering smoother, easier shifting.
High Output Alternator
Even small boats have high power demands today, so Suzuki´s DF90, DF80 and DF70 feature beefy, 27-Amp high-output alternators that are specially designed to generate the bulk of their power at low engine rpms. This design ensures a reliable supply of electricity to run pumps, lights, and a host of marine electronics, even during extended trolling.
New Trim and tilt limit system
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.
Oil-bathed, self-adjusting timing chains
Suzuki´s new DF90, DF80 and DF70 are the first and only outboards in their class equipped with oil-bathed, self-adjusting timing chains, instead of traditional timing belts. Automatic hydraulic tensioners ensure proper adjustment at all times, minimising required maintenance.
Dual Engine Flush Ports
Dual engine flush ports make flushing the cooling system a breeze, whether the boat is on the trailer or in the water.
Suzuki´s advanced new design
These new motors are the first to showcase Suzuki´s advanced new design, from the sleek engine contours to the eye-catching graphics that reflect the technology and power of Suzuki. 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 DF90, DF80 and DF70 keep looking good – even in the harsh marine environment.
more: suzuki@mindworks.co.uk Latest Releases
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Suzuki's triple line up of new generation 4-stroke outboards sets the standard for lightweight fuel-efficient power
Suzuki´s new 90, 80 and 70-Horsepower engines are big on power, compact in size and deliver class-leading fuel economy and performance.This trio of new 4-strokes, available in Europe in 2009, has been designed from the ground up, and showcases many of the engineering achievements that have made Suzuki the leader in 4-stroke outboard technology. In keeping with Suzuki´s belief that the best technology shouldn´t be reserved only for the biggest engines, the new DF90, DF80 and DF70 also offer important new features designed to make them faster, lighter and more efficient.
Suzuki started the marine industry´s 4-stroke revolution ten years ago with the introduction of its Innovation Award-winning, fuel-injected DF60 and DF70 outboards. Now Suzuki is re-inventing the category with the launch of the New Generation 4-strokes – the DF90, DF80 and DF70. The fact that two of these new outboards (DF70 and DF90) replace existing 4-strokes proves that Suzuki is not resting on its laurels, but is instead striving to constantly power forward with new and better technology for boaters.
“These new motors demonstrate our commitment to constant improvement and innovation to deliver what the market wants in terms of exciting performance together with fuel efficiency.” says Masahiro Yamamoto, Group Leader, Europe Marketing Group, Marine & Power Products. “Our goal was to break the industry standards and to develop smaller and lighter four-cylinder outboards, while expanding our offering in this important segment of the boating market. The DF90, DF80 and DF70 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 boats, including centre consoles, FRP Pleasure, Aluminum and RIBs.
Fuel efficient
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 optimise 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 brings a new level of 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.
Compact in size
To make these new motors lighter and more compact, Suzuki engineers began with a totally new 1.5 litre 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 centre of gravity forward and minimised the overall dimensions of the outboard.
The new DF90, for example, is almost 8cm shorter than Suzuki´s previous 90 hp 4-stroke. This is an important consideration on boats with limited transom clearance.
This compact design means the new DF90, DF80 and DF70 will look better, fit better and balance better on a wide range of popular boats. 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 155kg. – making Suzuki´s new DF90 the lightest 4-stroke outboard in its power class.
Best in class performance
When it comes to on-the-water excitement, Suzuki´s new four-cylinder DOHC 16-valve powerhead is designed to combine compact size with best-in-class performance. A new under cowl airflow design helps the engine “breathe” better, ensuring an optimum fuel/air ratio at all engine speeds.
Suzuki´s two-stage gear reduction system delivers the torque to swing large diameter, high-pitch propellers designed for the DF90, DF80 and DF70, for more propulsion where it matters most. In addition, Suzuki´s streamlined new gear case (first seen on Suzuki´s flagship DF300 V6) reduces drag by 36%, resulting in faster acceleration and greater speed. The Suzuki DF90, DF80 and DF70 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.
Clean and fuel efficient
Suzuki engineers also set out to improve fuel economy on the DF90, DF80 and DF70 by increasing mechanical efficiency. They designed a new oil pump that delivers greater mechanical efficiency and improved the internal hydrodynamics of the lubrication system allowing oil to move through the system with less resistance. And like all Suzuki fuel-injected 4-stroke outboards, these new engines are clean as well as efficient to meet the EURO emissions standard set by the European Parliament and the Council.
New shift system
Making these outboards even more dependable, low-maintenance and user friendly was a primary goal for this new generation of Suzuki 4-strokes. Engineers began by redesigning the shift transmission system, increasing rigidity and tightening the tolerances to reduce play between the parts.
These changes have resulted in a 40% improvement in gear transfer (compared to the original DF90), delivering smoother, easier shifting.
High Output Alternator
Even small boats have high power demands today, so Suzuki´s DF90, DF80 and DF70 feature beefy, 27-Amp high-output alternators that are specially designed to generate the bulk of their power at low engine rpms. This design ensures a reliable supply of electricity to run pumps, lights, and a host of marine electronics, even during extended trolling.
New Trim and tilt limit system
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.
Oil-bathed, self-adjusting timing chains
Suzuki´s new DF90, DF80 and DF70 are the first and only outboards in their class equipped with oil-bathed, self-adjusting timing chains, instead of traditional timing belts. Automatic hydraulic tensioners ensure proper adjustment at all times, minimising required maintenance.
Dual Engine Flush Ports
Dual engine flush ports make flushing the cooling system a breeze, whether the boat is on the trailer or in the water.
Suzuki´s advanced new design
These new motors are the first to showcase Suzuki´s advanced new design, from the sleek engine contours to the eye-catching graphics that reflect the technology and power of Suzuki. 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 DF90, DF80 and DF70 keep looking good – even in the harsh marine environment.
| TECHNICAL SPECIFICATIONS | |
|---|---|
| ENGINE TYPE | 4-stroke DOHC 16 valves |
| NUMBER OF CYLINDERS | Inline 4 |
| MAXIMUM OUTPUT (hp/rpm) | 70 / 5500, 80 / 5500, 90 / 5800 |
| FUEL DELIVERY | Multi-Point Sequential Electronic Fuel Injection |
| DISPLACEMENT | 1,502 litres (91.7cu. in.) |
| BORE X STROKE in. (mm) | 3.0 x 3.3 (75 X 85) |
| SHAFT LENGTH in. (mm) | L: 20 (510), X: 25 (637) |
| WEIGHT lbs (kg) | L: 341 (155), X: 348 (158) |
| CAM DRIVE | Chain driven valve train with automatic hydraulic tensioner |
| OPERATING RANGE (hp/rpm) | 70 / 5000-6000, 80 / 5000-6000, 90 / 5300-6300 |
| IGNITION SYSTEM | Fully-transistorized |
| ALTERNATOR | 12V 27A |
| GEAR RATIO | 2.59:1 |
| Note: Specifications subject to change without notice. | |
more: suzuki@mindworks.co.uk Latest Releases
