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Technology

Leading the industry with award-winning technology and designs,
Suzuki outboards provide features and benefits that make boating more enjoyable.

Offset Driveshaft Offset Driveshaft DF70A AND UP

EXPLANATION :

The offset driveshaft positions the crankshaft in front of the driveshaft, which moves its centre of gravity forward for more even weight distribution to provide balance while also minimizing vibration. The two stage gear reduction technology enables greater power and quick acceleration by enabling the outboard to spin a larger diameter propeller at a higher pitch.

ADVANTAGE :

  • Quick acceleration.
  • Less vibration.
  • More compact.
  • Stable steering performance.
  • Weight Forward

VVT (Variable Valve Timing) VVT (Variable Valve Timing) DF150AP, DF175AP, DF200A, DF200AP, 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.
Torque curve (DF175)

Direct Air Intake Direct Air Intake DF25/30A, DF350A

EXPLANATION :

Designing a direct airflow path from the intake port to the cylinder for a smoother, cooler flow of air boosting engine operating efficiency.

ADVANTAGE :

  • Delivers higher power output and improved combustion efficiency.
Air flow illustration

High Energy Rotation High Energy Rotation DF60AV

EXPLANATION :

These outboards are equipped with a lower unit based on that found on the DF140, specially engineered with a 2.42 gear ratio, which is larger than the standard model, in their lower units. When combined with a large 14-inch (36cm) propeller, the powerful system can deliver an explosive forward thrust, providing the propulsion you need for moving heavy boats.

ADVANTAGE :

  • Powerful and precise maneuvering even with big loads.
  • Tremendous power to turn large diameter propellers, offering quick acceleration.
DF60AV vs. DF60A size comparison. Gear ratio 2.42 vs. 2.27

Multi-stage Induction Multi-stage Induction DF150, DF150AP, DF175, DF175AP, DF200A, DF200AP, DF225, DF250

EXPLANATION :

Manifold pipes are switched between short and long ones during low speed and high speed operation to ensure the right volume of air enters the engine.

ADVANTAGE :

  • Increases output during high speed operation with greater volume of air input.
  • Increases combustion efficiency and maximizes torque by increasing the density in the air intake during low speed operation.

2-stage Gear Reduction 2-stage Gear Reduction DF70A AND UP

EXPLANATION :

This system which incorporates the Offset Driveshaft 70HP and up 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 from these high performance engines.

ADVANTAGE :

  • High propulsive efficiency with large diameter propeller.
  • 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

Lean Burn Lean Burn DF9.9A AND UP (NOT INCLUDING DF200TX, DF225TX, DF250TX)

EXPLANATION :

Lean Burn works by using real time computer processes and sensors to optimise fuel delivery by adjusting the air-fuel ratio as the engine is in operation.

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.
Comparison of Fuel Economy (DF300AP vs. Original DF300)

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).

Battery-less Electronic Fuel Injection Battery-less Electronic Fuel Injection DF15A, DF20A, DF25A, DF30A

EXPLANATION :

The fuel injection system operates battery-less, another industry wide first in its class. Delivering quicker starts, smoother running performance and more acceleration in all conditions, without the need for battery power.

ADVANTAGE :

  • Quick and easy start.
  • Cleaner and economic fuel consumption.
  • Higher performance in almost all operating ranges.

Dual Injector Dual Injector DF350A

EXPLANATION :

The dual injector delivers just the right amount of fuel at the right time into each cylinder. Found on the DF350A and DF352A.

ADVANTAGE :

  • Contributes to higher output and better fuel efficiency.

Self-adjusting Timing Chain Self-adjusting Timing Chain DF40A AND UP

EXPLANATION :

Maintenance free timing chains in our range of DF40 and above means no belt adjustments and no maintenance during the life of the engine. The self tensioning, oil bathed timing chain found exclusively in Suzuki high performance 4-stroke outboards reduce noise and improve durability for dependable and quiet operation. The automatic chain tensioner adjusts the chain as required during engine operation. Meaning there is no maintenance on the timing chain.

ADVANTAGE :

  • More durability compared to belt types of same class.
  • Maintenance-free.
  • Reduces your servicing costs.

Two-way Water Inlet 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. The low water inlet configuration increases water flow and delivers greater cooling efficiency, especially at high speeds.

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.
Water flow illustration

Suzuki Anti-corrosion Finish ALL MODELS

EXPLANATION :

Special protection is applied to the aluminum surface using high strength bonding to protect the aluminum made exterior parts.

ADVANTAGE :

  • Protection against corrosion helps increasethe overall engine durability.

Suzuki Water Detecting System 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 Dual Louver System Suzuki Dual Louver System DF350A, DF325A

EXPLANATION :

The new DF350A is equipped with a dogleg shaped dual louver at the air intake to remove water from the air taken into the cowl. These outboards also incorporates a direct intake system which contributes to higher engine output.

ADVANTAGE :

  • Allows a direct intake system, contributing to higher engine output.

Suzuki Dual Prop System Suzuki Dual Prop System DF325A, DF350A

EXPLANATION :

Found on the DF350A and DF325A the Suzuki dual prop system is a revolution in innovation and efficiency turns maximum horsepower output into water propulsion. With total of six blades (3 on each prop) the dual prop system provides more grip and propulsion and with each propeller rotating in a different directions, exceptional stability is achieved.

ADVANTAGE :

  • More stability when driving straight by eliminating the lateral forces associated with a single propeller.
  • Engine power is transferred to the water more efficiently.
  • Less water resistance due to small size of gear case.
  • Excellent water gripping performance and quick acceleration.
  • High speed gear case.
  • High reverse thrust.
  • High stability.

Suzuki Selective Rotation Suzuki Selective Rotation DF150AP, DF175AP, DF200AP, DF250AP, DF300AP

EXPLANATION :

For a large boat with two or more outboards, you generally need to pair a standard rotation outboard with a counter rotation model. The ground breaking selective rotation technology instead allows our outboards to be configured for either regular or counter rotation operation, for vessels equipped with multiple engines.

ADVANTAGE :

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

Tilt Limit System 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.

Suzuki Precision Control Suzuki Precision Control (Electronic Throttle and Shift Systems) DF150AP, DF175AP, DF200AP, DF250AP, DF300AP, DF325A, DF350A

EXPLANATION :

Suzuki Precision Control (SPC) sends computer signals to the engine electronically by the wire, eliminating friction of conventional push pull cables making shifting easier and smoother. Delivering precise, instant throttle responses for greater control and accuracy.

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.

Quiet Operation Quiet Operation DF150AP, DF175AP, DF200A, DF200AP, DF350A

EXPLANATION :

Engine noise on boats can make it difficult to relax and enjoy your time on the water. Suzuki outboards run unbelievably quiet, so much so that some users have thought their outboard was switched off. Suzuki have long been noted for their quiet operation. Such methods to reduce noise it to resonators on the intake manifold. As air is sucked in to the intake manifold at high velocities a harsh noise can be generated. Suzuki engineers have added a resonator to reduce such noise, keeping engine operation exceptionally quiet.

ADVANTAGE :

  • Quiet operation.
  • Less noise, making boating more pleasant.
Resonator

Suzuki Troll Mode System Suzuki Troll Mode System (Optional equipment) DF40A AND UP (NOT INCLUDING DF200TX/225TX/250TX)

EXPLANATION :

The Suzuki Troll Mode system gives boaters very fine control over engine speed when in forward gear. The RPM can be adjusted in to RPM intervals up to 1200RPM when the system is engaged.

ADVANTAGE :

  • Boat can keep running at a certain speed in low revs without having to operate the throttle on the boat.
  • Can be operated through the Suzuki multi-function gauge (2019 model engines and up).
Troll Mode toggle switch

Three-way Storage Three-way Storage DF4/5/6A

EXPLANATION :

The design allows the outboard to be removed from the boat and placed on any of its 3 sides for storage.

ADVANTAGE :

  • Can be stored anywhere.
  • No need to worry about the loading space or method.
STBD, FRONT and PORT