DRIVE BY WIRE SERIES

POWERFUL V6 & IN-LINE 4

DF300AP / DF250AP

Award-winning and exciting outboards, each one precision engineered to give you the power and performance you need, when you need it.

FEATURES

DF300AP / DF250AP 1. เครื่องยนต์เรือ Outboard engine

Proven Technology

By using our advanced technologies these V6 outboards deliver superior performance. They have dual overhead cam (DOHC) powerheads with four valves per cylinder and multi-point sequential electronic fuel injection. The 55° V-block design and offset driveshafts contribute to making them remarkably compact. The DF300AP, DF250AP and DF250 deliver high performance with our Variable Valve Timing (VVT), by maximising torque in the low/mid-range. The DF250 and DF225 use a multi stage induction system, which maximizes airflow efficiency for ultimate top-end performance.

New Suzuki Selective Rotation

In addition to our drive-by-wire system (Suzuki Precision Control) and the Lean Burn Control System, the DF300AP and DF250AP feature Suzuki’s Selective Rotation.

In its standard form, the outboard will operate in regular clockwise rotation, using the forward gear. Now, by changing the gear-shift mode and adding a counter rotational propeller, the same outboard can operate in counter rotation mode (anti-clockwise).

In counter rotation mode the power is transmitted through the reverse gear, which has been changed to give it the same characteristics as the forward gears. This is a world first in outboard motor technology.

When Only the Best is Good Enough

Our flagship V6 range provides the perfect power for both leisure and commercial craft. Suzuki served as the sole supplier of outboard motors to the London 2012 Olympic and Paralympic Games Sailing Regatta in which the DF300AP and DF200 along with the DF140, DF90A, and DF40A were used.

Suzuki Receives Seventh NMMA Innovation Award

When it comes to leading edge technology, Suzuki has time and again, delivered technological advancements that put Suzuki outboards at the forefront of advanced outboard motor design. Recognizing the DF300AP as the most innovative outboard introduced over the past year, the National Marine Manufacturers Association (NMMA) awarded the DF300AP with its prestigious NMMA Innovation Award for 2012 marking an unprecedented seventh win for Suzuki and following last year’s award with the new DF50A/40A, a second, unprecedented back-to-back win for Suzuki.
The number of awards that Suzuki has garnered over the years reflects the company’s strong desire to provide its customers with the very best, most innovative and most reliable products possible and acknowledges the outstanding work of the company’s engineering staff.

TECHNOLOGY

POWERFUL

FUEL EFFICIENT

RELIABLE

INNOVATIVE

The World’s First Selective Rotation Outboards

Award Winning Design Integrates both Regular and Counter-Rotation Operation into a Single Unit.

New Lower Unit

Compared to the original DF300, the biggest changes you’ll find on these outboards are in the lower unit, which was redesigned for the Suzuki Selective Rotation system—the world’s first integration of regular and counter-rotation models into a single unit. The system consists of a new drive gear layout in the lower unit that allows the outboard to operate in either regular or counter-rotation mode, and a switch that connects to a circuit in the engine compartment that engages the counter-rotation mode.
Like the DF300, the DF300AP/250AP utilizes an aggressive final drive ratio of 2.08:1 allowing it to turn a 406mm (16-inch) diameter propeller available in various pitch size for optimum performance on a wide variety of boats. Changes to gear designs provide greater durability, and adding a two-way water inlet changes water flow into the cooling system for increased cooling efficiency.

DF300AP / DF250AP 2. เครื่องยนต์เรือ Outboard engine

Suzuki Selective Rotation

In multi-outboard installations on large boats, a counter-rotation outboard is usually paired with a regular rotation model to help keep the boat traveling on an even keel and in a straight line. The DF300AP/250AP is built with special counter rotating gearing in the lower unit, which causes the prop to rotate in the opposite direction. Suzuki Selective Rotation eliminates the need to purchase a dedicated counter-rotation outboard by using a special switch that when connected to a circuit inside of the engine compartment, turns a regular rotation outboard into a counter-rotation model with a counter rotational propeller.* This industry first is made possible through a special, unified design of gears, shaft, and bearings in the lower unit that are designed to operate reliably and efficiently in either regular or counter-rotation directions.

DF300AP / DF250AP 3. เครื่องยนต์เรือ Outboard engine
DF300AP / DF250AP 4. เครื่องยนต์เรือ Outboard engine

Two-way Water Inlet

The engine’s cooling system relies on water supplied through low water intakes located on the lower unit. Utilizing this dual low water inlet configuration increases water flow into the lower unit, which delivers greater cooling efficiency. Positioning the forward inlet at the gear case nose delivers a greater water supply especially at high speeds. The second inlet is also positioned lower allowing the DF300AP/250AP to operate in shallow water conditions.

DF300AP / DF250AP 5. เครื่องยนต์เรือ Outboard engine

Superior Durability

With the addition of Suzuki Selective Rotation, gears in the lower unit were redesigned using a different alloy and slightly larger diameters delivering greater rigidity. The gears are specially heat treated creating gears that are highly durable.

DF300AP / DF250AP 6. เครื่องยนต์เรือ Outboard engine

Newly Designed Low DragGear Case

The DF300AP/250AP features a redesigned low drag gear case developed to accommodate the new gears utilized in the Suzuki Selective Rotation system.
The case itself is actually larger than the previous model to provide increased gear durability, however it is designed with a smoother, more hydrodynamic shape that allows it to move through the water with less drag and greater efficiency. Areas with the highest drag are indicated in red in the illustrations below. The comparison shows that the new design allows the lower unit to slice through the water with less drag.

DF300AP / DF250AP 7. เครื่องยนต์เรือ Outboard engine

Large Air Intake with Water Separator

The DF300AP/250AP 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.

DF300AP / DF250AP 8. เครื่องยนต์เรือ Outboard engine

Suzuki's Lean Burn Control System

Suzuki’s innovative Lean Burn Control System was first introduced on the DF90A/80A/70A 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 the operator precise control over engine RPM for improved fuel economy over a wider operating range. This combination also delivers smooth power transitions throughout the entire RPM range. In-house testing shows that while cruising, the DF300AP is 14% more economical than the original non-Lean Burn DF300 without sacrificing any power of the original DF300.

DF300AP / DF250AP 9. เครื่องยนต์เรือ Outboard engine

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.)

Cleaner, More Efficient Operation
Suzuki’s advanced four-stroke technology delivers cleaner and 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).

DF300AP / DF250AP 10. เครื่องยนต์เรือ Outboard engine

Suzuki Precision Control (Electronic Throttle and Shift Systems)

Suzuki Precision Control is a technologically advanced computer-based control system that replaces the mechanical control cables found in conventional control systems with electronic wiring that eliminates the source of friction and resistance. While you enjoy smooth throttle and shift operation with minimal friction, the system’s computer is processing and transmitting commands in real-time to actuators at the engine that deliver precise throttle control with smoother, decisive shifting. This is most evident in the low rpm range where operation is noticeably smooth and accurate. When combined with Suzuki’s Lean Burn Control System it allows control of fuel and air flow to boost the limit of the controllable revolution range improving fuel economy over a wide operating range. Suzuki Precision Control also features built-in systems that help guard the engine and drive against damage due to mishandling, and its design and simple wiring make installation easy, reducing the time required for rigging and adjustment. The system offers precision control for single, twin or triple installation as well as dual station operation.

DF300AP / DF250AP 11. เครื่องยนต์เรือ Outboard engine
DF300AP / DF250AP 12. เครื่องยนต์เรือ Outboard engine

Suzuki's Advanced Technology Delivers the Utmost in Performance VVT (Variable Valve Timing)

Suzuki’s engineers designed the 4.0-liter V6 engine with an aggressive cam profile that delivers maximum output and performance at high rpm. In coupling this cam profile with Suzuki’s advanced Variable Valve Timing (VVT), the DF300AP/250AP delivers the additional torque that outboards need for accelerating in the low to mid-range. VVT achieves this by adjusting the timing of the intake valves, allowing them to open before the exhaust valves are fully closed, creating a momentary overlap in the timing where both sets of valves are open. Using VVT, this overlap can be increased or decreased by altering intake timing with the camshaft resulting in optimum timing for low and mid-range operation.

DF300AP / DF250AP 13. เครื่องยนต์เรือ Outboard engine

Spherical Bore Throttle Body

An 81mm spherical bore throttle body smoothes the turbulent airflow into the engine that occurs as the throttle begins to open. Providing a smoother airflow during acceleration results in increased throttle control and stable engine operation at low rpm.

DF300AP / DF250AP 14. เครื่องยนต์เรือ Outboard engine

O2 Sensor Feedback Control System

Both the DF300AP and DF250AP are equipped with an O2 Sensor Feedback Control system that 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.

Fuel Cooler

The cooler the fuel the denser it is, and the denser it is the better performance it delivers. Incorporating a fuel cooler in the DF300AP/250AP’s fuel delivery system cools the fuel before it enters the engine. Providing the engine with an optimum fuel supply results in better combustion and more performance.

Long Track Intake Manifold

Another performance enhancing feature on the DF300AP/250AP is a tuned long track intake manifold. Using long intake pipes tuned to provide smooth airflow into the engine the system provides the DF300AP/250AP with enhanced low-end power.

DF300AP / DF250AP 15. เครื่องยนต์เรือ Outboard engine

Suzuki Water Detecting System

Water in the fuel can be the source of poor combustion, lower power output, and corrosion. To help protect the engine from moisture in the fuel, the DF300AP/250AP 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.

DF300AP / DF250AP 16. เครื่องยนต์เรือ Outboard engine

SPECIFICATIONS

MODELDF300AP *3
RECOMMENDED TRANSOM HEIGHT mmX:635, XX:762
STARTING SYSTEMElectric
WEIGHT kg *1X: 290, XX: 299
ENGINE TYPEDOHC 24-Valve
FUEL DELIVERY SYSTEMMulti-Point Sequential Electronic Fuel Injection
NO. OF CYLINDERSV6 (55-degree)
PISTON DISPLACEMENT cm34,028
BORE ×STROKE mm98 x 89
MAXIMUM OUTPUT kW220.7
FULL THROTTLE OPERATING RANGE rpm5,700-6,300
STEERINGRemote
OIL PAN CAPACITY Lit.8.0
IGNITION SYSTEMFully-transistorized
ALTERNATOR12V 54A
ENGINE MOUNTINGShear Mount
TRIM METHODPower Trim and Tilt
GEAR RATIO2.08:1
GEAR SHIFTF-N-R (Drive-by-wire)
EXHAUSTThrough Prop Hub Exhaust
PROPELLER SELECTION (Pitch)*2
All propellers are the 3-blade type
15″-27.5″
MODELDF250AP *3
RECOMMENDED TRANSOM HEIGHT mmX:635, XX:762
STARTING SYSTEMElectric
WEIGHT kg *1X: 290, XX: 299
ENGINE TYPEDOHC 24-Valve
FUEL DELIVERY SYSTEMMulti-Point Sequential Electronic Fuel Injection
NO. OF CYLINDERSV6 (55-degree)
PISTON DISPLACEMENT cm34,028
BORE ×STROKE mm98 x 89
MAXIMUM OUTPUT kW184.0
FULL THROTTLE OPERATING RANGE rpm5,500-6,100
STEERINGRemote
OIL PAN CAPACITY Lit.8.0
IGNITION SYSTEMFully-transistorized
ALTERNATOR12V 54A
ENGINE MOUNTINGShear Mount
TRIM METHODPower Trim and Tilt
GEAR RATIO2.08:1
GEAR SHIFTF-N-R (Drive-by-wire)
EXHAUSTThrough Prop Hub Exhaust
PROPELLER SELECTION (Pitch)*2
All propellers are the 3-blade type
15″-27.5″

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

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

* 3 : Suzuki Selective Rotation

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

FEATURES​
TECHNOLOGY​
SPECIFICATIONS​
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2-STAGE GEAR REDUCTION

DF70A AND UP

EXPLANATION :

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.

ADVANTAGE :

  • 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.

MODEL
DF70A/ 80A/90A
DF100A/ 115A/140A
DF150(AP)/ 175(AP)/ 200A(AP)
DF200/ 225/250
DF250AP/ 300AP
DF350A
GEAR RATIO
2.59:1
2.59:1
2.50:1
2.29:1
2.08:1
2.29:1

OFFSET DRIVESHAFT

DF70A AND UP

EXPLANATION :

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

ADVANTAGE :

  • Less vibration
  • More compact
  • Stable steering performance

VVT (VARIABLE VALVE TIMING)

DF150AP, DF175, DF175AP, DF200A, DF200AP, DF250, DF250AP, DF300AP, DF350A

EXPLANATION :

The Variable Valve Timing is used to control the open and close timing on the intake valve depending on the engine operation.

ADVANTAGE :

  • Offers smooth, powerful torque.
  • Provides tremendous acceleration during operation for all speed ranges.

LEAN BURN

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

EXPLANATION :

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

ADVANTAGE :

  • 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).

 

 

SELF-ADJUSTING TIMING CHAIN

DF40A AND UP

EXPLANATION :

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.

ADVANTAGE :

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

TWO-WAY WATER INLET

DF300AP, 250AP

EXPLANATION :

The engine’s cooling system relies on water supplied through low water inlets located on the lower unit, featuring two water inlets where usually there is only one.

ADVANTAGE :

  • Increases the water flow, providing better cooling performance.
  • Positioning an inlet at the front of the gear case delivers a greater water supply not only at high speeds but also during shallow drive.

SUZUKI WATER DETECTING SYSTEM

DF100A AND UP

EXPLANATION :

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.

ADVANTAGE :

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

SUZUKI SELECTIVE ROTATION

150AP, DF175AP, DF200AP, DF250AP, DF300AP

EXPLANATION :

Function for selecting regular or counter rotation on one outboard with an optional connector.

ADVANTAGE :

  • Either regular or counter rotation can be used on the same outboard.

SUZUKI PRECISION CONTROL

(ELECTRONIC THROTTLE AND SHIFT SYSTEMS)

DF150AP, DF175AP, DF200AP, DF250AP, DF300AP, DF350A

EXPLANATION :

Operation from the remote control is delivered to outboard via an electric signal and not by the traditional mechanical control cables.

ADVANTAGE :

  • Less friction and resistance compared to mechanical type that uses actual control cables.
  • Quick and reliable operation.
  • Lean Burn integration offers improved fuel economy for a wide range of speed.

SUZUKI TROLL MODE SYSTEM

(OPTIONAL EQUIPMENT)

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

EXPLANATION :

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

ADVANTAGE :

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

TILT LIMIT SYSTEM

DF50AV, DF60A AND UP

EXPLANATION :

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

ADVANTAGE :

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

KEYLESS START SYSTEM

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

EXPLANATION :

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

ADVANTAGE :

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