Delivering Superior Fuel Efficiency and High Performance— The New Generation DF50A and DF40A

 

FEATURES

New Generation Fuel Injection System (Battery-Less Fuel Injection)

Fuel is supplied with Suzuki's Lean Burn Control system and a Battery-Less Fuel Injection system that gives these outboards remarkable improvements fuel efficiency while maintaining excellent power and performance.

First In Class with Roller Rocker Arms

Both are first in class to feature friction reducing roller rocker arms and each utilizes offset crankshafts resulting in smoother operation and greater mechanical efficiency.

Engine Monitoring Led Indicators

An LED monitoring system provides engine operating status at a glance.

Lower Emissions, Efficient Operation

Suzuki's highly efficient four-stroke technologies produce lower emissions that allow outboards like the DF25A/30A to conform to some of the world's strictest emissions standards*1 including the EURO 1 emissions Standards (EU Directive 2003/44EC)*2, and receive a three-star rating from the California Air Resources Board (CARB).

*1:Emission standards compliancy is region specific.
*2:The EU emissions standards (exhaust gases and noise levels) set by the European Parliament and Council.

  • Lightest outboards in the 18.4kW (25PS)/22.1kW (30PS) four-stroke outboard class*3.
  • Lean Burn Control and Battery-Less Fuel Injection deliver class-leading fuel-efficiency.
  • First in class with Roller Rocker Arms that provide smoother action and reduce friction.
  • Offset Crankshaft offers smoother piston movement for greater operating efficiency.
  • Direct Air Intake and Ventilation supplies engine with a cooler airflow for greater efficiency.
  • Engine Monitoring LED Indicators keep you informed of operating conditions.

*3:According to in-house investigations as of February 2014.

CUTTING EDGE TECHNOLOGIES

Lightest In Class Outboards Are Packed With Suzuki Technology

Lightest In Class*4

Featuring some of Suzuki's best technologies, the DF25A/30A are the lightest outboards available in the 18.4kW (25PS)/22.1kW (30PS) four-stroke outboard class.*4

*4:According to in-house investigations as of February 2014

First In Class With Roller Rocker Arms

These are the first outboards in their respective classes to utilize a roller with internal bearings on the cam slipper surface for both the intake and exhaust valves. The roller changes contact between the camshaft and rocker arm from a conventional sliding action to a rolling action reducing friction in rocker arm operation.

Offset Crankshaft

Positioning the crankshaft slightly off center of the cylinder reduces lateral pressure against the cylinder wall as the piston moves up and down in the cylinder. The result is smoother piston movement, which improves operating efficiency.

 

 

Direct Intake And Engine Cover Ventilation

A new engine cover design provides the direct intake system with a smoother, cooler flow of air boosting engine operating efficiency. This, together with a newly designed air cleaner allows higher power output from a small displacement.

The rotating flywheel helps reduce temperatures inside the engine cover by venting warm air to the outside from the recoil cover, inner air intake, and engine upper cover.

First In Class With Roller Rocker Arms

These are the first outboards in their respective classes to utilize a roller with internal bearings on the cam slipper surface for both the intake and exhaust valves. The roller changes contact between the camshaft and rocker arm from a conventional sliding action to a rolling action reducing friction in rocker arm operation.

Engine Monitoring LED Indicators

The LED monitoring system utilizes three LEDs to keep you informed of current operating conditions. Located in an easily visible position, the LEDs provide easy to understand monitoring at a glance so you can enjoy a pleasurable boating experience.

Engine Flush Port

To help protect the engine from damage caused by salt, sand, and dirt that can build up in the engine's cooling system, the outboards are equipped with an easy to access freshwater flush port to make cooling system flushing as easy and convenient as possible.

Suzuki Lean Burn Control System

This intelligent fuel management system predicts fuel needs by monitoring engine performance and operating conditions to deliver a leaner fuel mixture to the engine. The result is remarkable improvements in fuel economy.

New Generation Fuel Injection System (Battery-Less Fuel Injection)

A remarkably compact and lightweight fuel injection system is designed to fit into these outboards without adding unneeded bulk or weight. What's more, it operates without a battery and still delivers quicker starts, smoother operation, and more acceleration in all conditions.

Easy Start Recoil

Fuel injection delivers easier starts, but Suzuki goes a step further incorporating a very light recoil starter into these outboards. Requiring less pull strength, the Easy Start Recoil Starter makes starting the outboard quick and easy.

Suzuki's Anti Corrosion System

Suzuki protects the outboard's exterior from harmful corrosion with its own specially formulated anti-corrosion finish. Applying the finish directly to the outboard's aluminum surface, allows maximum bonding of the finish to the surface to increase durability and help protect parts that are constantly exposed to saltwater.

SPECIFICATIONS

MODEL DF30A / DF25A
RECOMMENDED TRANSOM HEIGHT mm S:381 *7 S:381, L:508
STARTING SYSTEM Electric/ Manual Manual
WEIGHT kg *5 S:65 *7 S:62, L:63
ENGINE TYPE OHC
FUEL DELIVERY SYSTEM Battery-Less Multi-Point Sequential Electronic Fuel Injection
NO. OF CYLINDERS 3
PISTON DISPLACEMENT cm3 490
BORE ×STROKE mm 60.4 X 57.0
MAXIMUM OUTPUT kW DF25A: 18.4, DF30A: 22.1
FULL THROTTLE OPERATING RANGE rpm DF25A: 5,000 - 6,000, DF30A: 5,300 - 6,300
STEERING Tiller
OIL PAN CAPACITY Lit. 1.5
FUEL TANK CAPACITY Lit. 25
IGNITION SYSTEM Digital CDI
ALTERNATOR 12V 14A
ENGINE MOUNTING Shear Mount
TRIM METHOD Manual Trim and Tilt
GEAR RATIO 2.09:1
GEAR SHIFT F-N-R
EXHAUST Through Prop Hub Exhaust

PROPELLER SELECTION (Pitch) *6

All propellers are the 3-blade type

9"-15"

*5:Dry weight: not including propeller and engine oil.
*6:Please inquire at your local dealer for details of the propeller, *7: DF25A only

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

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