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Suzuki DF250AP White

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Overview

Experience power like no other with this Suzuki mechanical series of boat motors while satisfying your desire for exceptional performance and improved fuel economy.

Specifications
Model
DF250AP
Category Name
Outboard Engines
Year
2024
Sale Type
New
Manufacturer
Suzuki
Color
white
Weight
L: 520 X: 531 (AP Model)
Steering
Remote
WARRANTY
60 month warranty ( includes 36 month factory warranty plus 24 month promotion warranty)
Gear Ratio
2.08:1
Engine Type
DOHC 24-Valve
Bore X Stroke
98 X 89
Trim Position
Power Trim and Tilt
Transom Height
L: 20 X: 25
Ignition System
Solid State Direct Ignition
Operating Range
5500 - 6100 (RPM)
Starting System
Electric - Suzuki Start System
Oil Pan Capacity
8.5 (8.0) (L)
Standard Propeller
Optional
Piston Displacement
4028 (cc)
Propeller Selection
15 - 27.5(R/R) 17-26 (C/R)
Fuel Delivery System
Multi Point Sequential Electronic Fuel Injection with Lean Burn and Oxygen Sensor
Max Horse Power Output
250
features

“THE ULTIMATE 4-STROKE OUTBOARD”

Since its introduction, Suzuki’s flagship 300 hp V6 has been a showcase for advanced technologies and designs. The award-winning DF300AP incorporates “Suzuki Selective Rotation” – the world’s first outboard that combines standard and counter-rotation operation into the same lower unit. Two-Way low water pick-up inlet provides engine cooling with increased water flow. The DF300AP also features Suzuki Precision Control. This fly-by wire control offers silky smooth shifting and throttle response. The addition of “Suzuki Lean Burn Control” with “Oxygen Sensor” can provide an improvement in fuel efficiency, especially while cruising on the long run home. Go with a Proven Winner, Go Suzuki.

PROVEN TECHNOLOGY

By using our advanced technologies these V6 outboards deliver superior performance. They have dual overhead cam (DOHC) powerheads with four valves per cylinder and multi-point sequential electronic fuel injection. The 55° V-block design and offset driveshafts contribute to making them remarkably compact. The DF300AP, DF250AP and DF250 deliver high performance with our Variable Valve Timing (VVT), by maximising torque in the low/mid-range. The DF250 and DF225 use a multi-stage induction system, which maximizes airflow efficiency for ultimate top-end performance.

Suzuki DF250AP White

SUZUKI SELECTIVE ROTATION

In multi-outboard installations on large boats, a counter-rotation outboard is usually paired with a regular rotation model to help keep the boat traveling on an even keel and in a straight line. The DF300AP/250AP is built with special counter-rotating gearing in the lower unit, which causes the prop to rotate in the opposite direction. Suzuki Selective Rotation eliminates the need to purchase a dedicated counter-rotation outboard by using a special switch that when connected to a circuit inside of the engine compartment, turns a regular rotation outboard into a counter-rotation model with a counter-rotational propeller.* This industry first is made possible through a special, unified design of gears, shaft, and bearings in the lower unit that are designed to operate reliably and efficiently in either regular or counter-rotation directions.

Suzuki DF250AP White

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.

Suzuki DF250AP White

NEW LOWER UNIT

Compared to the original DF300, the biggest changes you’ll find on these outboards are in the lower unit, which was redesigned for the Suzuki Selective Rotation system — the world’s first integration of regular and counter-rotation models into a single unit. The system consists of a new drive gear layout in the lower unit that allows the outboard to operate in either regular or counter-rotation mode and a switch that connects to a circuit in the engine compartment that engages the counter-rotation mode.

Like the DF300, the DF300AP/250AP utilizes an aggressive final drive ratio of 2.08:1 allowing it to turn a 406mm (16-inch) diameter propeller available in various pitch size for optimum performance on a wide variety of boats. Changes to gear designs provide greater durability, and adding a two-way water inlet changes water flow into the cooling system for increased cooling efficiency.

SUPERIOR DURABILITY

With the addition of Suzuki Selective Rotation, gears in the lower unit were redesigned using a different alloy and slightly larger diameters delivering greater rigidity. The gears are specially heat treated creating gears that are highly durable.

Suzuki DF250AP White

NEWLY DESIGNED LOW DRAG GEAR CASE

The DF300AP/250AP features a redesigned low drag gear case developed to accommodate the new gears utilized in the Suzuki Selective Rotation system.

The case itself is actually larger than the previous model to provide increased gear durability, however it is designed with a smoother, more hydrodynamic shape that allows it to move through the water with less drag and greater efficiency. Areas with the highest drag are indicated in red in the illustrations below. The comparison shows that the new design allows the lower unit to slice through the water with less drag.

Suzuki DF250AP White

LARGE AIR INTAKE WITH WATER SEPARATOR

The DF300AP/250AP is designed with a large air induction port to maximize airflow into the engine in order to obtain maximum power output. The increased airflow produces more low- to mid-range torque and provides a wide power band that is necessary in an outboard engine. Suzuki also designed the system with a water separator, which aids in keeping water out of the electronic throttle body and a heat shield to keep intake air from being heated by the engine.

Suzuki DF250AP White

SUZUKI LEAN BURN CONTROL SYSTEM

Suzuki’s innovative Lean Burn Control System was first introduced on the DF90A/80A/70A to great acclaim from boaters and the media alike. It predicts fuel needs according to operating conditions allowing the engine to run on a more efficient fuel mixture through the use of a lean air-fuel ratio. It delivers its benefits over a wide operating range, providing significant improvements in fuel economy from low-speed operation into the cruising range. Combining this system with the Suzuki Precision Control electronic throttle and shift system allows the operator precise control over engine RPM for improved fuel economy over a wider operating range. This combination also delivers smooth power transitions throughout the entire RPM range. In-house testing shows that while cruising, the DF300AP is 14% more economical than the original non-Lean Burn DF300 without sacrificing any power of the original DF300.

Suzuki DF250AP White SUZUKI PRECISION CONTROL

Suzuki Precision Control is a technologically advanced computer-based control system that replaces the mechanical control cables found in conventional control systems with electronic wiring that eliminates the source of friction and resistance. While you enjoy smooth throttle and shift operation with minimal friction, the system’s computer is processing and transmitting commands in real-time to actuators at the engine that deliver precise throttle control with smoother, decisive shifting. This is most evident in the low rpm range where operation is noticeably smooth and accurate. When combined with Suzuki’s Lean Burn Control System it allows control of fuel and air flow to boost the limit of the controllable revolution range improving fuel economy over a wide operating range. Suzuki Precision Control also features built-in systems that help guard the engine and drive against damage due to mishandling, and its design and simple wiring make installation easy, reducing the time required for rigging and adjustment. The system offers precision control for single, twin or triple installation as well as dual station operation.

Suzuki DF250AP White

SUZUKI VVT (VARIABLE VALVE TIMING)

Suzuki’s engineers designed the 4.0-liter V6 engine with an aggressive cam profile that delivers maximum output and performance at high rpm. In coupling this cam profile with Suzuki’s advanced Variable Valve Timing (VVT), the DF300AP/250AP delivers the additional torque that outboards need for accelerating in the low to mid-range. VVT achieves this by adjusting the timing of the intake valves, allowing them to open before the exhaust valves are fully closed, creating a momentary overlap in the timing where both sets of valves are open. Using VVT, this overlap can be increased or decreased by altering intake timing with the camshaft resulting in optimum timing for low and mid-range operation.

Suzuki DF250AP White

SPHERICAL BORE THROTTLE BODY

An 81mm spherical bore throttle body smoothes the turbulent airflow into the engine that occurs as the throttle begins to open. Providing a smoother airflow during acceleration results in increased throttle control and stable engine operation at low rpm.

Suzuki DF250AP White

LONG TRACK INTAKE MANIFOLD

Another performance enhancing feature on the DF300AP/250AP is a tuned long track intake manifold. Using long intake pipes tuned to provide smooth airflow into the engine the system provides the DF300AP/250AP with enhanced low-end power.