Suzuki DF350A

Tilt Limit System

To protect the boat and motor from damage that can occur when tilting the motor, both outboards incorporate a user adjustable tilt limit switch that prevents the outboard from tilting beyond a predetermined point.

Suzuki Keyless Start System*3

Suzuki’s Keyless Start system utilizes a proximity key-fob that transmits an access code to the engine’s starting system. As long as you have the key-fob on your person, all you need to do is stand within one meter of the console, connect the emergency switch cord, turn on the main switch then start the outboard with a push of a button. With the key remaining safely in your pocket, the system offers simple, stress-free operation while reducing the risk of a lost key. The system also makes for an excellent theft deterrent since the outboard will not start without the proper access code. The key-fob also floats so should it ever go overboard you can retrieve it.

*3:Availability may differ in some regions. Please contact your local Suzuki dealer for more information.

Offset Drive Shaft

Pioneered by Suzuki, the use of the offset drive shaft on four-stroke outboards has long been utilized to reduce the size of the outboard. Found on all Suzuki four-strokes from the DF70A and up, this design positions the crankshaft in front of the drive shaft simultaneously moving the outboard’s center of gravity forward. While the design contributes greatly to the outboard’s overall compactness and increased power performance, it also moves the engine’s axis of inertia, the point where engine vibrations are at a minimum, up over the upper engine mount, thus greatly reducing vibration. These outboards also incorporate two-stage gear reduction designed to take maximum advantage of the power produced by these high performance engines. Providing a final drive ratio of 2.50:1—the largest you can find in either of these outboard classes—it delivers powerful torque for quick acceleration and great top-end speed.

Quiet Operation

Suzuki four-stroke outboards have long been noted for their exceptionally quiet operation. Suzuki engineers go to great lengths incorporating methods designed to keep outboard operation as quiet as possible. In a noise comparison test between the DF200A and a competing 147kW (200PS) in-line four-stroke outboard, the results clearly show that the DF200A runs quieter than its competitor.

Cleaner, More Efficient Operation

Suzuki’s advanced four stroke technologies deliver cleaner, more efficient operation that conforms to the Recreational Craft Directive (RCD) Standards and has received a three-star rating from the California Air Resources Board (CARB).

Big Block—High Performance Engine

The design goal for the new DF200A was to provide boaters with the performance of a V6 DF200 outboard from a more compact, lighter weight four-cylinder engine. For this, Suzuki engineers started with the 2.9-liter straightfour block used on DF150/175, updating the “Big Block” design with a DOHC four-valve per cylinder powerhead and a 10.2:1 compression ratio. In addition, the engine incorporates Variable Valve Timing, Multi-stage Induction, and a 32-bit onboard computer. The end result is an engine that weighs 30kg less than the its V6 version making it an excellent choice for powering bass boats and other lightweight vessels. It’s also an excellent choice for those wanting to upgrade older boats fitted with V6 two-strokes.

Suzuki Lean Burn Control System

The Suzuki Lean Burn Control System is an intelligent fuel delivery system that achieves remarkable improvements in fuel consumption making fuel-efficient four-stroke outboards even more economical. Monitoring engine performance and operating conditions in real time, the system uses the 32-bit onboard ECM to predict fuel needs and deliver a leaner, more precise fuel mixture across the outboard’s operating range. The results show significant improvements in fuel economy across the entire powerband, including the cruising range where the engine is used a majority of the time. Comparing the new DF200A with the original V6 DF200, tests show up to a 19% increase in fuel efficiency mainly in the cruising range (around 70% of its maximum speed).

• Data used in the graphs were obtained through “In-House Suzuki Testing” under uniformed conditions. Results will vary depending upon operating conditions (boat design, size, weight, weather, etc.)

O2 Sensor Feedback Control System

EXPLANATION

– This system provides accurate, real-time information Delete the ECU uses to manage the fuel/ air ratio as operating conditions change.

ADVANTAGE

– Enables emissions to be clean and stable.

– Helps maintain optimum engine operating efficiency across the engine’s full operating range.

With  O2 Sensor Feedback Control system that enables emissions to be cleaner and more stable. The system controls the air to fuel ratio across each of the engine’s operating ranges providing an optimum amount of fuel to the engine regardless of rpm

Two-way Water Inlet

The engine’s cooling system relies on water supplied through low water intakes located on the lower unit. Utilizing this dual low water inlet configuration increases water flow into the lower unit, which delivers greater cooling efficiency. Positioning the forward inlet at the gear case nose delivers a greater water supply especially at high speeds. The second inlet is also positioned lower allowing the DF300AP/250AP to operate in shallow water conditions.