DF140A / DF115A / DF100A

If an engine with performance is an essential part of your boating life, then you need our combination of quality, reliability and choice.


DF140A / DF115A / DF100A 1. เครื่องยนต์เรือ Outboard engine

Maximizing Fuel Economy and Performance

With the launch of the new generation DF140A, DF115A and DF100A, our engineers have delivered a trio of outboards that offer great fuel economy without sacrificing on performance. This has been achieved by employing our advanced Lean Burn Fuel Control System.

Transferring Power Into Speed

Our in-line four cylinder outboards utilise aggressive gear ratios that enable these outboards to swing a larger prop. The combination of a large prop and lower gear ratio delivers plenty of torque, exhilarating acceleration and exciting top-end speed.

All Torque

With acceleration and manoeuvrability high on the list of priorities it is no surprise that the DF140, with its excellent power to weight ratio, was one of the models selected for use at the London 2012 Olympic & Paralympic Games Sailing Regatta.

Innovative Technology

The DF140A, DF115A and DF100A include an O2 Sensor Feedback System that helps to keep emissions cleaner and more stable. In addition to this the DF140A and DF115A also benefit form a knock sensor that detects and controls abnormal combustion allowing the engine to operate at optimum performance.

Cleaner, More Efficient Operation

Suzuki utilizes a number of its advanced technologies to deliver cleaner, more efficient operation that conforms to the Recreational Craft Directive (RCD) – Directive 2003/44EC of the European Parliament and of the Council, and has received three-star ratings from the California Air Resources Board (CARB).

DF140A / DF115A / DF100A 2. เครื่องยนต์เรือ Outboard engine






Maximizing Fuel Economy, Maximizing Performance

Recognizing a need for more fuel-efficient outboards, Suzuki developed and introduced its innovative Suzuki Lean Burn Control System on the DF90A/80A/70A outboards, which received great acclaim from boaters and the media alike. The system 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 to fuel ratio. Its benefits are delivered over a wide operating range providing significant improvements in fuel economy from low-speed operation up into the cruising range. In-house testing shows that while cruising, the DF140A is 14% more economical than its predecessor without sacrificing any of the original DF140’s power.

Data used in the graphs were obtained through in-house testing under uniformed conditions. Results will vary depending upon operating conditions (boat design, size, weight, weather, etc.)

Data used in the graphs were obtained through in-house testing under uniformed conditions. Results will vary depending upon operating conditions (boat design, size, weight, weather, etc.)

O2 Sensor Feedback Control System

Like Suzuki’s flagship DF300AP, the DF140A/115A/100A feature an O2 Sensor Feedback Control system that keeps emissions cleaner and more stable. By controlling the air to fuel ratio across each of the engine’s operating ranges, the system provides an optimum amount of fuel to the engine regardless of rpm.

DOHC 4-Valve Engine

Suzuki has a long history of designing and manufacturing engines for motorcycle, automobile, and marine use. Drawing upon this unrivaled experience Suzuki engineers have designed an in-line four cylinder engine that delivers high power output, high performance, excellent fuel economy, and efficient operation. With a displacement of 2,044cm3, the in-line four-cylinder block is topped with a high performance 16-valve, dual overhead cam (DOHC) powerhead.

DF140A / DF115A / DF100A 3. เครื่องยนต์เรือ Outboard engine

Obtaining Maximum Performance

The DF140A/115A/100A utilize an enhanced air intake system that maximizes airflow into the engine to obtain greater power output. In order for this system to achieve full potential, greater exhaust efficiency is required as well, so the engines are designed with an efficient “4 into 2 into 1” exhaust system that reduces drag in the exhaust letting it flow smoothly out of the cylinders. This design increases low to mid-range torque on these outboards and provides the wide powerband that boaters want.
The DF140A/115A/100A also feature a two-stage reduction gear that delivers the torque needed to turn a large diameter propeller. This is normally done using larger gears or a larger gearbox, but Suzuki has long employed a two-stage system that provides the required torque without adding unwanted bulk or weight to the engine. With a final drive ratio of 2.59, these outboards produce plenty of torque for quick acceleration.
Both models also feature a two-stage reduction gear that delivers a larger gear ratio of 2.59. On the drive shaft, the first stage reduction delivers a ratio of 1.24 while the second stage, in the gear case itself, delivers a further reduction of 2.08. The biggest gain this system delivers is in its capability to use a highly efficient, large pitch, large diameter propeller.

DF140A / DF115A / DF100A 4. เครื่องยนต์เรือ Outboard engine

Knock Sensor (DF140A/115A)

The DF140A and DF115A are Suzuki’s first four-cylinder outboards featuring a knock sensor. Found on some V6 models, this system is used to detect and control abnormal combustion allowing the engine to operate at optimum performance. The system increases engine durability and helps deliver maximum power.

Multi-Point Sequential Electronic Fuel Injection

Multi-Point Sequential Electronic Fuel Injection is Suzuki’s sophisticated fuel injection system found on Suzuki outboards from the DF40A to DF 300A. The system uses a 32-bit computer in the electronic control unit to monitor vital operating data gathered from a series of sensors located in critical areas on the engine. Processing this data in real time, the system automatically calculates the optimum amount and exact timing of fuel to be injected at high pressure into the combustion chamber. Benefits include smoother and faster acceleration, crisp throttle response, maximum fuel economy, low emissions, and quick, reliable starts.

Suzuki Water Detecting System

Water in the fuel can lead to problems that include poor combustion, lower power output, and corrosion. The Suzuki Water Detecting System is designed to help protect the engine from moisture in the fuel utilizing a water detecting fuel filter to alert the operator with both visual and audio warnings when water is present in the fuel. The filter also designed to let you check for water visually.

DF140A / DF115A / DF100A 5. เครื่องยนต์เรือ Outboard engine

Suzuki Troll Mode System (Optional)

The Suzuki Troll Mode System is optionally available on all three outboards. This system provides finer control over engine speed at low rpms keeping the boat moving at a steady speed while trolling. When the system is engaged, engine speed is controlled with an independent control switch that adjusts engine revs in 50rpm increments over a range that spans from idle to 1,200rpm. In addition to the control switch, which can be mounted nearly anywhere on the console, the system includes a tachometer and is compatible with Suzuki’s SMIS digital gauges or the dual scale analog gauges.

DF140A / DF115A / DF100A 6. เครื่องยนต์เรือ Outboard engine

Multi Function Tiller Handle (Optional)

Available on the DF115A and DF100A only, Suzuki’s Multi-Function Tiller handle is ergonomically designed using computer modeling to simulate the operator’s body, arm, and eye movements to optimize placement of the shift lever, switches, and indicator and provide easier, more comfortable control of the outboard. The shift lever is also ergonomically designed to provide a comfortable feel whether it’s operated with the left or right hand. The power trim and tilt switch is located on the handle grip allowing simultaneous operation of the throttle and trim and the handle also incorporates a Suzuki Troll Mode System switch.

DF140A / DF115A / DF100A 7. เครื่องยนต์เรือ Outboard engine


* 1 : Dry weight : not including propeller and engine oil

* 2 : Please inquire at your local dealer for details of the propeller

* 3 : Counter Rotation Model Available

The appearance, colors, and equipment of outboard motors may differ according to market and grade.
Specifications may change without prior notice.
* Manufacture data





This system which incorporates the Offset Driveshaft features a first stage reduction between the crankshaft and drive shaft, and a second stage reduction inside the gear case. This design makes a larger gear ratio possible, allowing it to turn a large diameter propeller.


  • High propulsive efficiency with large diameter propeller.

  • Powerful navigation, maintaining propeller rotation even with a larger load.

  • Tremendous power to turn large diameter propellers, offering quick acceleration.

DF70A/ 80A/90A
DF100A/ 115A/140A
DF150(AP)/ 175(AP)/ 200A(AP)
DF200/ 225/250
DF250AP/ 300AP




The engine powerhead is positioned closer to the front, moving the outboard’s center of gravity forward.


  • Less vibration
  • More compact
  • Stable steering performance


DF9.9B AND UP (NOT INCLUDING DF150, DF175, DF200, DF225, DF250)


The Lean Burn Control System supplies the right fuel and air mixture depending on the navigation conditions.


  • Significant improvement in fuel economy in all speed ranges especially at cruising speed.
  • Fuel is saved and gasoline costs are cut thanks to improved fuel economy.


Uses 14% less fuel compared to the original DF300, mainly in the cruising range where the engine is used a majority of the time. Data used in this graph was obtained through in-house testing under uniformed conditions. Results will vary depending on operating conditions(boat design, size, weight, weather, etc).






The timing chain runs in an oil-bath so it never needs lubricating, and is equipped with an automatic hydraulic tensioner so it remains properly adjusted at all times.


  • More durability compared to belt types of same class.
  • Maintenance-free.




It helps protect the engine from water in the fuel using a water detecting fuel filter to alert the operator with both visual and audio warnings when water is present in the fuel.


  • Can avoid water in fuel, which can lead to issues like poor combustion, lower power output and corrosion.



DF40A AND UP (NOT INCLUDING DF150/175/225/250)


A system that keeps the boat running at a certain speed in low revs. Equipped in all tiller handle models DF40A and up.


  • Boat can keep running at a certain speed in low revs without having to operate the throttle on the boat.




A Tilt Limit System that prevents the outboard from tilting beyond a certain angle.


  • Prevents damage to the boat or outboard due to excessive outboard tilting.


DF70A AND ABOVE (NOT INCLUDING DF150/175/200/225/250)


System that allows you to start the engine by have the key-fob nearby.


  • Helps deter theft more than a normal key system.
  • Key does not need to be inserted.