Suzuki DF250SS Product manual
Contents
1. E O LU 4 without Multi Stage Induction O F LOW MID HIGH ENGINE SPEED rpm Forged Pistons The upper portion of each piston used in the DF250SS is treated with an alumite coating that increases heat resistance A resin coating applied to the piston skirt improves resistance to wear and reduces friction Alumite coating Piston Resin coating Fuel Cooler The cooler the fuel the denser it is and the denser it is the more performance it delivers The DF250SS incorporates a water cooled fuel rail in the fuel delivery system The fuel is cooled before it is injected into the cylinder resulting in better combustion and better performance DF250SS PRODUCT INFORMATION Suzuki s Advanced Engineering Delivers Compact Designs Offset Driveshaft Two Stage Cam Drive System Suzuki incorporates a number of innovative designs into its Ihe DF250SS incorporates Suzukis proven two stage cam drive system that uses both gears and chain The first stage gears transfer power between the crankshaft and the drive shaft While the second stage transfers power from the drive shaft to the cam shafts with a chain This system allows use of smaller diameter cam outboards As a result Suzuki offers some of the most compact outboards in their class One such design innovation is the offset driveshaft Positioning the crankshaft in front of the driveshaft the outboard s center of gravity is moved forward This contribut2. PELIS SIT OKC E O MARINE Suzuki 23085 The DF250SS represents a new kind of Suzuki outboard a Sport 4 Stroke designed for the sportsman who is serious about outboard performance Based on a 4 0 liter Big Block V6 the DF250SS produces 250 horsepower and delivers outstanding acceleration throughout the entire powerband thanks to the incorporation of some of Suzuki s most advanced technologies With a 20 inch transom it s perfect for bass boats sport pontoons ski boats flats and bay boats or any other boat that demands power performance and reliability The DF250SS also offers all the advantages of Suzuki s 4 stroke technology such as superior fuel economy quiet low vibration and environmentally friendly operation all while providing impressive performance and rock solid reliability Prot sl Bi u td E IRE If you re as serious about outboard performance as you are about your sport then the DF250SS is definitely for you DF250SS Main Features NW The DF250SS is designed to deliver performance and reliability that today s sport users demand E 4 0 liter Big Block V 6 engine combined with Suzuki s Variable Valve Timing VVT and Multi Stage Induction delivers superior acceleration throughout the entire powerband E The 20 inch transom is perfect for bass boats sport pontoon boats ski boats flats and bay boats or any boat that is designed for the sportsman who is serious about outboard
3. performance E Gear case features a hydrodynamic design introduced first on the flagship DF300 that reduces drag resistance for fast acceleration and increased top speed NW The DF250SS complies with the California Air Resources Board s CARB 2008 exhaust emission standard and has earned the 3 Star Ultra Low Emission Rating UA AS i I DF250SS PRODUCT INFORMATION Suzuki Technologies Deliver Outstanding Performance VVT Variable Valve Timing Suzuki engineers started off in a big way by designing the with VVT DF250SS based on a big block 4 0 liter engine the largest displace ment found in this class This V6 engine features an aggressive cam profile delivering maximum output and performance at high rpm and Suzukis advanced Variable Valve Timing VVT provides the DF250SS with the torque needed to boost low to mid range acceleration VVT provides this boost by adjusting the intake valve without VVT TORQUE timing allowing intake valves to open before the exhaust valves are fully closed This process creates a momentary overlap in the timing where both sets of valves are open With VVT this overlap can be increased or Advance decreased by altering 40 Movable Angle sE 2 intake timing with the T On iaa camshafts to optimize SS We 4 eo Retard LT LOW MID HIGH ENGINE SPEED timing for low and Valve Lift mid range operation Crank Angle Valve
4. x 30 4x 14 1 2 x 31 4 x 14 1 2 x 32 The weight of the motors are Dry Weight not including propeller Boats and motors come in a large variety of combinations See your authorized dealer for correct prop selection to meet recommended RPM range at W O T Please read your owner s manual carefully Remember boating and alcohol or other drugs don t mix Always use a personal flotation devise Please operate your outboard safely and responsibly Suzuki encourages you to operate your boat safely and with respect for the marine environment SUZUKI MOTOR CORPORATION reserves the right to change without notice or obligation equipment specifications colors materials and other items to apply to local conditions Each model may be discontinued without notice Please inquire at your local dealer for details of any such changes Actual body colors may differ slightly from the colors in this brochure 1 286 11 3 458 18 286 11 3 458 18 gt lt 633 24 9 139 5 5 1048 41 3 771 30 4 1715 67 5 UNIT mm inch ta Emissi SUZUKI AMERICAN SUZUKI MOTOR CORPORATION P O BOX 1100 BREA CA 92822 1100 http www suzuki com DF250S Product Information 0705 99999 C2049 101 CARB Three Star Label The three star label identifies engines that meet the California Air Resources Board s 2008 exhaust emission standards Engines meeting these standards have 6
5. 5 lower emissions than EPA 2006 exhaust emission standards
6. Overlap Diagram of VVT Mechanism VVT Actuator Rotation Direction Intk Camshaft Ex Camshaft Crankshaft Cy Advance Retard LL crankshat Position Sensor dE E m dE E Drain Throttle Opening Angle Throttle Sensor ZZ L P Water Temp Sensor bee Advance Oil Control Valve OCV Oil Pan A T T Cam Position A noe L a Engine Oil Flow Manifold Absolute Pressure Sensor ol Signal 4 Multi Stage Induction Suzuki engineers also utilized Suzukis Multi Stage Induction which changes intake manifold pipe length according to engine rpm to enhance engine performance The DF250SS utilizes two intake manifold pipes per cylinder one operates at low engine rpm and the other takes over at higher rpm During low engine rpm air enters the combustion chamber through the longer curved mani fold pipe Ihe particular length of this pipe allows just the right amount of fresh air into the chamber to improve combustion and boost low end torque As engine rpm increases a valve on the intake manifold opens letting air enter directly into the combustion chamber through the short straight intake pipe This allows a greater volume of air into the chamber increasing the engines ability to breathe at high rpm thus improving high end power output Multi Stage Induction Module Air Flow in Multi Stage Induction Module Lower rpm High rpm 5 Torque Curve with Multi Stage Induction
7. al battery configurations When used in this configuration the system charges both main and auxiliary batteries simultaneously on independent circuits With this design you can drain down the accessory battery powering your electronics and still have a fully charged main battery for starting the motor Requires purchase of optional wiring harness Regulator SINGLE CHARGING SYSTEM Engine Load ata NS Main Battery Regulator Regulator DUAL CHARGING SYSTEM Engine Load 1 7 LY IMSS Auxiliary Main Battery Battery No Regulator High Output Alternator The DF250SS generates electricity from a high output alternator that delivers 54A 12V of electrical power Suzuki s design allows the alternator to produce a majority of its output at low rpm so even when operating at 1000rpm it can produce approximately 38A of power In most situations this is enough power to keep an assortment of electronics up and running A 55 50 45 40 35 30 25 20 0 1000 2000 3000 4000 5000 rpm DF250S PRODUCT INFORMATION 8 Features that Offer Gonvenient Operation Dual Engine Flush Ports Ihe buildup of sand and salt in the engines cooling system can Tilt Limit Switch Ihe outboard tilt system lead to engine damage To aid in reducing such buildup the DF250SS is designed with two freshwater flush ports that make flushing of the cooling system as convenient and easy as possible incorporates an adjustabl
8. auges are gt also NMEA 2000 compatible and with the simple push of a few buttons access to a wealth of vital data is right at your fingertips Here at Suzuki Marine we have what you need to keep your Suzuki 3 WU TTT outboard running strong season after season DF250SS PRODUCT INFORMATION MARINE 4 CYCLE ENGINE OIL ie AERTS erase Tas TEMA on FE SUZUKI JAG rrr 7 le TEME Dn REF A SUZUKI mo ao iy N 20120 y CA Send a A 6 12 MF MPH 0 FO 10 D i F TEE I ta y a Sig Tr a i r 1 F is ai y a DF250SS SPECIFICATIONS MODEL Dr2a08ss Multi Point Sequential PISTON DISPLACEMENT 4 028 245 6 cm cu in BORE x STROKE mm in 98 x 89 3 81 x 3 46 MAXIMUM OUTPUT kW 184kw 250 hp FULL THROTTLE OPERATING RANGE rpm 5300 6300 SIEEAING OIL PAN CAPACITY U S Imp qt 80 L 85US gt 7 0 Imp at IGNITION SYSTEM Fully transistorized ALTERNATOR 12V 54A ENGINE MOUNTING TRIM METHOD Power Trim and Tilt GEAR RATIO 2 08 1 Final Drive Ratio GEAR SHIFT F N R EXHAUST Through Prop Hub Exhaust DRIVE PROTECTION Rubber Hub PROPELLER SIZE in 3x16x17 3 x 15 1 2 x 17 3 or 4 BLADE STAINLESS 3x 16x 18 5 3 x 15 1 4 x 19 STEELTYPE OPTIONAL 3x 16x20 3 x 14 3 4 x 21 Re 3 x 14 3 4 x 23 3x 14 1 2 x 25 3x 16x23 3 x 14 1 2 x 27 3x 16x 24 5 4 x 14 1 2 x 28 3x16x26 4x 14 1 2 x 29 3x 16x 27 5 4 x 14 1 2
9. e tilt limit switch which prevents the motor from tilting beyond a predetermined Jim position This can be used to protect With one port located on the rear panel and the second on the both the boat and motor from front panel access is easy and flushing out the system is possible damage that can occur when tilting whether the boat is in the water or on the trailer the motor Tilt Limit System Genuine Suzuki Parts and Accessories Genuine Suzuki Parts and Accessories are your key to total perfor mance and boating satisfaction Suzuki controls and gauges give boaters the power and information they need to master any day on the water We offer a full line of premium quality stainless steel props specifically engineered to maximize the performance and fuel efliciency of Suzuki 4 stroke outboards And you can rely on genuine Suzuki fuel and oil filters engine oil and gear oil Suzuki Marine 4 Cycle Engine Oil offers your outboard the Ultimate in performance and protection Our engine sent dl oil meets the advanced NMMA FC W certification providing superior lubrication and the industries most complete panel of anti corrosion additives and rust inhibitors The Suzuki Modular Instrument System uses an easy to connect and expandable cable system to transmit graphic and numerical data to Multi Function gauges Easy to set up and install these SMIS Multi Function Gauges display real time N readings that monitor all engine functions These g
10. es to sprockets which in turn allow for a reduction in valve angles also the overall compact size and provides improved power and reducing the size of performance It also greatly reduces engine vibration since the the cylinder head engines axis of inertia the point where vibrations are at a Additionally the minimum is in line with the upper engine mounts timing chain system incorporates an automatic hydraulic Offset Drive Shaft tensioner to keep the chain properly a adjusted and provide SEIFE years of aA a maintenance free operation T Streamlined Gear Case Ihe DF250SS takes advantage of the streamlined gear case introduced on the DF300 to reduce drag created as the lower unit moves through the water This contributes to faster acceleration and increased speed Guarding Against the Elements Suzuki s Anti Corrosion Finish The outside of the DF250SS is covered with Suzuki s multi layered anti corrosion finish that is specially formulated to increase the durability of the engine and help protect the aluminum exterior that is constantly exposed to saltwater This advanced finish offers maximum bonding of the finish to the outboard s aluminum surface creating an effective treatment against corrosion Large Air Intake and Flywheel with Fan Blades Increasing airflow into the engine can increase power output so Suzuk
11. i engineers designed the DF250SS with dual air induction ports to maximize airflow into the engine to obtain maximum power output The increased airflow delivers more low to mid range torque and provides the outboard with a wider powerband The flywheel is designed with fan blades that expel heat from within the engine cover and discharge the hot air Flywheel Magneto out of the side of the cowl keeping the temperature within the cowl under control Fuel Filter with Water Separator The fuel system incorporates a large easy to maintain fuel filter that removes contaminants from the fuel before they can reach the engine A water separator built into the fuel filter offers a height ened level of protection by keeping water out of the engine Acrylic Resin Black Metallic Basecoat Epoxy Primer Undercoat Suzuki Anti Corrosion Finish Acrylic Resin Clear Topcoat Suzuki Aluminum Alloy Air Intake Fuel Filter SUZUKI Suzuki s Advanced Electronics Optimize Performance 32 Bit ECM and Suzuki s Multi Point Sequen tial Electronic Fuel Injection Suzuki pioneered the use of multi point sequential electronic fuel injection in four stroke outboards with the introduction of the DF60 and DF70 the first four stroke outboards designed with multi point sequential electronic fuel injection At the heart of the DF250SS is a multi point sequential fuel injection system which is operated by an ECM Engine C
12. ontrol Module using a series of engine sensors to constantly monitor crucial data in real time This comprehensive network of sensors includes the Manifold Absolute Pressure Sensor Crankshaft Position Sensor Intake Air Tempera ture Sensor Cylinder Wall Temperature Sensor Camshaft Position Sensor and Exhaust Jacket Temperature Sensor Using a powerful 32 bit computer the ECM processes data from all of these sensors and instantly calculates the optimum amount of fuel to be injected at high pressure into each cylinder Benefits of this system include reduced exhaust emissions which allow the DF250SS to comply with CARB 3 Star emission requirements lower fuel consumption smoother starts crisper acceleration impressive performance and maximum efficiency Direct Ignition System Supplying spark to the DF250SS is an advanced ignition system that utilizes integral type spark plug caps with built in ignition coils The system is controlled by the outboard s powerful 32 bit computer and provides each cylinder with optimum spark timing In addition to reducing the number of parts and simplifying the wiring system this arrangement greatly reduces electronic engine noise that can interfere with VHF radios fish finders and other marine electronics Plug Top Ignition Coil Regulator with Dual Circuit Charging System The DF250SS features a built in dual circuit charging system that can be adapted for use with du
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