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Maximizing Fuel Economy, Maximizing Performance Suzuki engineers have delivered a pair of outboards that offer the great fuel economy without sacrificing on performance and employ advanced technologies that Suzuki has pioneered over the last decade. The DF140Aand DF115A incorporate the Suzuki Lean Burn System—the same system that has been delivering remarkable fuel economy on Suzuki’s award winning flagship, the DF350AP, as well as the DF9.9B/20A/15A through DF300AP outboards. The Suzuki Lean Burn System allows the engine to operate on a leaner, more efficient fuel mixture providing significant...

Main Features of the DF140A/115A n 124.7 cu.in. DOHC 16-valve High Performance Engine Suzuki Lean Burn Control System n O n 2 Sensor Feedback Control System n Knock Sensor Suzuki Water Detecting System n n Multi-Point Sequential Electronic Fuel Injection Suzuki Troll Mode System (Optional) n n Multi function tiller handle (DF115A Optional) Suzuki Lean Burn Control System Recognizing a need for more fuel-efficient outboards, Suzuki developed and introduced its innovative Suzuki Lean Burn Control System on the DF90A/70A outboards, which received great acclaim from boaters and the media alike. The...

DOHC 4-Valve Engine Suzuki has a long history of designing and manufacturing engines for motorcycle, automobile, and marine use. Drawing upon this unrivaled experience Suzuki engineers have designed an in-line four cylinder engine that delivers high power output, high performance, excellent fuel economy, and efficient operation. With a displacement of 124.7 cu.in., the in-line four-cylinder block is topped with a high performance 16-valve, dual overhead cam (DOHC) powerhead. Obtaining Maximum Performance The DF140A and DF115A utilize an enhanced air intake system that maximizes airflow into the...

Multi-Point Sequential Electronic Fuel Injection The DF140A and DF115A are the Suzuki's first fourcylinder outboards featuring a knock sensor. Found on some V6 models, this system is used to detect and control abnormal combustion allowing the engine to operate at optimum performance. The system increases engine durability and helps deliver maximum power. Multi-Point Sequential Electronic Fuel Injection is Suzuki’s sophisticated fuel injection system found on Suzuki outboards from the DF40A to DF 350A. The system uses a 32-bit computer in the electronic control unit to monitor vital operating...

Trim and Tilt Limit System The trim and tilt limit system is designed to help protect the boat from damage that can occur when tilting the outboard. A tilt angle sensor performs as both a tilt limit and trim sender and a step-free, continuous type tilt limiter makes installation of the outboard possible on nearly any type of boat. Suzuki Anti Corrosion Finish Suzuki’s Anti Corrosion Finish is specially formulated to increase the durability of the engine and help protect parts of the outboard’s aluminum exterior. This advanced finish is designed for maximum bonding of the finish to the outboard’s...

SUZUKI COLOR DISPLAY The new Suzuki Color Display is a high-resolution LED network gauge that is extremely easy to read -even in bright sunlight. It is capable of monitoring two engines simultaneously, including RPM, speed*, water pressure*, fuel level* and fuel consumption*, engine temperature, trim, engine hours and alternator voltage. It features front-mounting points and operates on a NMEA 2000 network with one easy connection. Benefits • Full-color LED display is easy to ready in sunlight and night-time operation • Displays data** for one or two engines per gauge • 3 standard preconfigured...

Jun Itoh In charge of Engine Design. Suzuki Employee for 17 years. When we started development of the DF100A/115A/140A our goal was to retain the best characteristics of original DF140 and focus on more fuel efficiency and reliability. To achieve our goal we incorporated a number of new technologies into these outboards. These are the first four-cylinder outboards to incorporate a knock sensor. To determine the sensor placement, we carried out a series of tests to find the proper position for mounting the sensor on the engine. Adding the knock sensor to the engine allows for finer control over...