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

HIGH ENERGY ROTATION

DF50AV, DF60AV

EXPLANATION:
These outboards are equipped with gears designed 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.

ADVANTAGE:

• Powerful navigation and precise maneuvering even with big loads.
• Tremendous power to turn large diameter propellers, offering quick acceleration.

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.

LARGEST GEAR RATIO IN ALL CLASS

MULTI-STAGE INDUCTION

DF250/225, DF200AP/175AP/150AP, DF200A/175A/150A, DF250W, DF150W

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.

VVT (VARIABLE VALVE TIMING)

DF350A/325A/300B, DF300AP/250AP, DF250, DF250W, DF200AP/175AP/150AP, DF200A/175A

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.

DIRECT AIR INTAKE

DF350A/325A/300B 

EXPLANATION:
Designing a direct airflow path from the intake port to the cylinder suppresses any increase in the intake temperature and improves combustion efficiency.

ADVANTAGE:

• Delivers higher power output from a small displacement with improved combustion efficiency.

LEAN BURN

DF9.9B AND UP (not including DF250/225/200, DF150W)

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).

BATTERY-LESS ELECTRONIC FUEL INJECTION

DF30A/25A, DF20A/15A/9.9B

EXPLANATION:
Parts used in the larger models have been redesigned into a more compact design and mounted onto smaller size models.

ADVANTAGE:

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

DUAL INJECTOR

DF350A/325A/300B

EXPLANATION:
The dual injector delivers just the right amount of fuel at the right time into each cylinder.

ADVANTAGE:

• Contributes to higher output and better fuel efficiency.

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

DF250AP, DF300AP

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 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 increase the overall engine durability.

SUZUKI DUAL LOUVER SYSTEM

DF350A/325A/300B

EXPLANATION:
The new DF350A is equipped with a dog-leg shaped dual louver at the air intake to completely remove water from the air taken into the cowl.

ADVANTAGE:

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

SUZUKI WATER DETECTING SYSTEM

DF70A 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 PROP SYSTEM

DF350A/325A/300B

EXPLANATION:
The Suzuki Dual Prop System spins two propellers rotating in opposite directions on a single engine.

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.
• Powerful backing and breaking force.
• Less water resistance due to small size of gear case.
• Good water gripping performance and quick startup acceleration.

SUZUKI SELECTIVE ROTATION

DF300AP/250AP, DF200AP/175AP/150AP 

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)

OPTIONAL:DF350A/325A/300B, DF300AP/250AP, DF200AP/175AP/150AP, DF140BG/115BG 

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.

QUIET OPERATION

DF350A/325A/300B, DF200AP/175AP/150AP, DF200A/175A/150A, DF140BG/115BG

EXPLANATION:
Intake noise is suppressed with a resonator, which makes the noise from the outboard quieter.

ADVANTAGE:

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

TILT LIMIT SYSTEM

DF50AV AND UP (not including DF90AWQH, DF60AQH, DF50A/40A)

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.

THREE-WAY STORAGE

DF4A/5A/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.

SUZUKI TROLL MODE SYSTEM (OPTIONAL EQUIPMENT)

DF40A AND UP (not including DF250/225/200, DF250W, DF150W, DF90AWQH)

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.

KEYLESS START SYSTEM

OPTIONAL : DF350A/325A/300B, DF300AP/250AP, DF200AP/175AP/150AP, DF140BG/115BG

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.