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GEKI: PARTING SEAS

A Force to Match the Power of Nature and the Sea
Representing Suzuki’s Identity and Heritage.
A Symbol of Our Passion and Commitment
to the Ultimate Marine Innovation.

THE NEW DF300B

A REVOLUTION IN INNOVATION

INTRODUCTION

POWER WITH PASSION
THE NEW DF300B

We are proud to introduce our NEW DF300B – an outboard that perfectly balances awesome power and thrust, with outstanding fuel-efficiency and trusted reliability all in a lightweight and stylish design.

Built for every-day use of larger boats, this market-leading new outboard has been engineered to run on 91 RON fuel and, is the world's first four stroke outboard of 300 horsepower with a dual propeller (Suzuki Internal Research).

This high-tech and innovative DF300B has been designed to be robust, easy to use and versatile, making it the ideal outboard for large boats whatever the task.

Whether you are using your boat for work or for leisure, wherever you are in the world, this new outboard is the ultimate choice.

PRODUCT FEATURE

VOICE OF DEVELOPER

Katsuhiro FUKUDA
Katsuhiro FUKUDAChief Engineer

We are so glad to hear that we have received a lot of good words for Suzuki Dual Propeller System after our launch of DF350A and DF325A.
This time we utilized this technology on 300 horsepower to meet the requests from customers who couldn't experience our Dual Propeller System due to the horsepower regulation of their boat rating.
The combination of our Suzuki Dual Propeller System and our Suzuki 2-Stage Gear Reduction successfully made better torque which is suitable especially for pontoon boats and heavy boats.
The DF300B is packed with the very latest outboard technologies. Among them, we are confident that the Dual Propeller System will provide the ultimate boating experience.
In addition, slick acceleration delivers a straight and true response. The DF300B has the ability to trace the exact line that the driver imagined - as if it was running on a rail. It’s also got brilliant deceleration with a total of 6 blades moving at the same time – yet another Suzuki innovation.
Suzuki’s outboards are continuously being developed and evolving with our customer’s needs in mind.
Experience Suzuki’s newest high-end model, the one worthy of being named the “ULTIMATE OUTBOARD MOTOR”.

SUZUKI DUAL PROP SYSTEM

SUZUKI DUAL PROP SYSTEM

The dual prop system efficiently turns 300 horsepower output into propulsion under water.
As an added benefit, because each propeller rotates in a different direction, exceptional stability is achieved.

SUZUKI DUAL LOUVER SYSTEM

SUZUKI DUAL LOUVER SYSTEM

The DF300B is equipped with a double louver at the air intake to remove water from the air taken into cowl.
The double louver removes water from the air. Incorporating a direct intake system, Suzuki’s dual louver system contributes to higher engine output.

DUAL INJECTOR

DUAL INJECTOR

Dual injectors deliver just the right amount of fuel at just the right time into the cylinder.
This dual injector contributes to higher output and better fuel efficiency.

OFFSET DRIVESHAFT

OFFSET DRIVESHAFT

Suzuki outboards are among the most compact outboards in their respective classes.
That’s due in part to our proven offset driveshaft system. This design places the crankshaft in front of the driveshaft through the use of intermediate gear reduction. In addition to providing an increase in power performance and adding to the compactness of the outboard, this system moves the outboard’s centre of gravity forward, resulting in better weight distribution and balance, better directional stability, and less vibration.

2-STAGE GEAR REDUCTION

2-STAGE GEAR REDUCTION

The DF300B outboard also incorporates a 2-Stage Gear Reduction which results in a large reduction gear ratio. It delivers powerful torque for quick acceleration and great top-end speed.

DIRECT AIR INTAKE

DIRECT AIR INTAKE

A new engine cover design provides the direct intake system with a smoother, cooler flow of air boosting engine operating efficiency.

SUZUKI’S LEAN BURN CONTROL SYSTEM

SUZUKI’S LEAN BURN CONTROL SYSTEM

Our innovative Lean Burn Control System was first introduced on the DF90A/80A/70A to great acclaim. The system predicts fuel needs according to operating conditions, allowing the engine to run on a leaner, more efficient 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. In combination with Suzuki Precision Control electronic throttle and shift system, the operator can precisely, and smoothly, increase or decrease engine RPM for significantly improved fuel economy.

SUZUKI PRECISION CONTROL(Electronic Throttle and Shift Systems)

SUZUKI PRECISION CONTROL(Electronic Throttle and Shift Systems)

This technologically advanced system is a computer-based drive-by-wire control system that eliminates the friction and resistance of mechanical control cables. Operation is smooth and precise with crisp, immediate shifting that is most evident in the low rpm range and when manouvering around the marina and in close quarters. The system is configurable for single, twin, triple, or quad installations, and for dual stations.

ADVANCED TECHNOLOGY THAT DELIVERS THE UTMOST IN PERFORMANCE VVT (VARIABLE VALVE TIMING)

ADVANCED TECHNOLOGY THAT DELIVERS THE UTMOST IN PERFORMANCE VVT(VARIABLE VALVE TIMING)

Our engineers designed the 4.4-litre V6 engine with an aggressive cam profile that delivers maximum output and performance at high rpm. In coupling this cam profile with our advanced Variable Valve Timing (VVT), the DF300B delivers the additional torque that outboards need for accelerating in the low to midrange. 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.

SELF-ADJUSTING TIMING CHAIN

SELF-ADJUSTING TIMING CHAIN

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. Simple, effective and maintenance-free.

QUIET OPERATION

QUIET OPERATION

Suzuki outboards have long been noted for their quiet operation.
In fact, they run so quietly that some users have thought the engine was switched off. To ensure this same level of quiet operation, The DF300B is fitted with a resonator on the intake manifold. Often overlooked as a noise source, air drawn into the intake manifold at high velocities can generate a harsh noise. Adding the resonator reduces such noise, keeping the engine operation exceptionally quiet. We have taken sound quality into consideration over the entire speed range and both skipper and passengers alike will be impressed with both the quietness and engine sound, especially when idling or trolling.

SUZUKI TROLL MODE SYSTEM

The Troll Mode System provides finer control over engine speed at low rpms to keep your boat moving at a constant speed while trolling.
When the system is engaged, revs are controlled with an independent control switch that adjusts engine revs in 50rpm increments over a range spanning from idle to 1,200rpm. The system includes a control switch, which can be mounted nearly anywhere on the console, and a tachometer, and is compatible with our SMIS digital gauges or the dual scale analogue gauges.

SPECIFICATIONS

MODEL DF300B
RECOMMENDED TRANSOM HEIGHT mm (in.)
  • X : 635 (25)
  • XX : 762 (30)
STARTING SYSTEM Electric
WEIGHT kg*1
  • X : 330
  • XX : 339
ENGINE TYPE V6 - 55° DOHC 24-Valve
Valve Train Drive Chain with Variable Valve Timing
FUEL DELIVERY SYSTEM Electronic Fuel Injection
NO. OF CYLINDERS 6
PISTON DISPLACEMENT ㎤ (cu.in.) 4,390 (267.9)
BORE × STROKE mm (in.) 98 (3.86) x 97 (3.82)
MAXIMUM OUTPUT kW (PS) 220.7 (300)
STEERING Remote
FULL THROTTLE OPERATING RANGE rpm 5,300 - 6,300
OIL PAN CAPACITY ℓ 8.0
IGNITION SYSTEM Fully-transistorised
ALTERNATOR 12V 54A
ENGINE MOUNTING Shear Mount
TRIM METHOD Power Trim and Tilt
GEAR RATIO 2.29:1
GEAR SHIFT F-N-R (Drive-by-Wire)
EXHAUST Through Prop Hub Exhaust
PROPELLER SELECTION (Pitch)*2All propellers are the 3-blade type FRONT: 3×15 1/2×12.0-31.5
REAR: 3×15 1/2×12.0-31.5
*1: Dry Weight: Including battery cable, not including propeller and engine oil.
*2: Please enquire at your local dealer for details of the propeller.