Suzuki 25 HP DF25ATSW5 Outboard Motor

Description

We have the Suzuki DF25ATSW5 for sale new in its factory crate, with the price listed on this page. This is the white version of Suzuki’s 25 HP short shaft remote motor: three cylinders, fuel injection, power trim and tilt, electric start, and a 15 inch shaft for low transoms.

We ship it anywhere in the world. Before you pay, we send a written delivery quote, so the full cost is clear up front. Most buyers of this one are fitting out a white RIB, a yacht tender or a small console boat with a short transom.

Suzuki DF25ATSW5 for sale: the model code decoded

Suzuki builds the DF25A in about a dozen versions. The letters tell them apart. Here’s what each part of this code means.

In short, the Suzuki DF25ATSW5 for sale is the DF25ATS5 in white. The engine, gearcase, trim system and rigging are the same. Only the colour and a small price difference separate them.

Who this motor is built for

Short transom plus a steering wheel is a specific combination. Here are the boats where we see the Suzuki DF25ATSW5 for sale most:

• Console RIBs from about 3.8 to 4.5 metres. Many have 15 inch transoms and white or light grey tubes.
• Yacht tenders with a small console, where a white motor matches the yacht.
• White fibreglass skiffs and small runabouts built for short shaft motors.
• Aluminium boats with a side console added, usually 12 to 15 feet.
• Dive and snorkel boats for small groups close to shore.

If your boat is steered with a tiller, this is the wrong motor. Look at the DF25ATHSW5. If your transom is 20 inches, the DF25ATLW5 is the right pick.

Why white?

Mostly to match the boat. A white motor on a white hull or with white tubes looks like a factory package. Charter and rental operators like the clean look too. The white paint uses the same Suzuki coating and corrosion protection as the grey. It shows dirt a little more, so give the cowl of the Suzuki DF25ATSW5 for sale a quick wipe after trips.

Suzuki DF25ATSW5 for sale technical data

From Suzuki’s DF25A specifications and dealer data. Weight is an approximate figure.

If a registry, insurer or surveyor needs a figure that is not shown, ask us. We check it against the owner’s manual packed with the Suzuki DF25ATSW5 for sale.

Features that make a difference

Three cylinders where others use two

Suzuki’s choice of three cylinders at 25 HP is the main reason this motor feels refined. Power pulses are smaller and closer together. Vibration through the transom, console and wheel drops. On a RIB, where the hull is light and the tubes carry vibration, you notice it at once.

Battery-less EFI

Once the motor turns, the flywheel generator powers the injection and ECU. So the motor doesn’t depend on the battery to keep running. You still need a battery to start a remote motor with the key. If it fails, the emergency recoil starter under the cowl gets the Suzuki DF25ATSW5 for sale going, and the EFI runs it properly from the first stroke.

Lean burn

The ECU trims fuel back at steady cruise. On a tender running short trips, or a RIB cruising along a coast, it shows up as fewer fuel stops. The exact saving depends on hull, load and throttle habits.

Thumb trim at the control

Trim switch on the control handle. Trim down to get on plane, then trim out a touch. RIBs especially respond to trim, since a small change lifts the bow and frees the tubes from the water.

Shallow water running

Power trim lets you raise the leg partway for very slow running over shallows, beach approaches or reefs. Keep the water intake under water. This is something tender drivers use every day with the Suzuki DF25ATSW5 for sale, coming in to a beach or a shallow jetty.

Suzuki shows the whole DF25A family on its official outboards pages.

Rigging the Suzuki DF25ATSW5 for sale on a RIB or tender

Console RIBs and tenders are compact, and cable runs are short with tight bends. A little planning avoids stiff steering and hard shifting.

Shopping list

• Remote control: side mount on the console with key start, trim switch and lanyard. Included in some market packages, which we confirm in the quote.
• Control cables: throttle and shift, measured for your boat.
• Steering: mechanical helm, wheel, cable and link arm.
• Battery: 12V marine starting battery, box, fuse and isolator switch.
• Fuel: tank, line with primer bulb and a water separating filter.
• Gauges: optional. A tachometer is the most useful.

Getting the cable runs right

Measure from the centre of the control, along the real route, to the motor centre line. Add about three feet for the loop the motor needs to turn and tilt. Round up to the next foot. On a RIB, the route often goes under the console and along the floor. Use the actual path, not a straight line.

Transom pad and mounting

Many RIB transoms are thinner than a traditional boat’s. Check the clamp screws reach properly and use a backing plate under the clamps. Through bolt the Suzuki DF25ATSW5 for sale as well as clamping it. The anti ventilation plate should sit about level with the bottom of the hull or slightly above.

Prop choice

Run it with your normal load and check full throttle rpm. Target 5,000 to 6,000. Tenders that carry four or five people often need less pitch than the factory prop. Light RIBs with one or two aboard may want more. Genuine Suzuki props are listed under Suzuki genuine parts and accessories.

Steering feel and the trim tab

Small console boats are sensitive to steering torque. At speed, the prop tends to pull the wheel to one side. On the Suzuki DF25ATSW5 for sale, the adjustable trim tab under the anti ventilation plate fixes that. Run the boat at your usual cruise, note which way the wheel pulls, then turn the tab a few degrees toward that side. Test again and repeat until the wheel stays light. Grease the steering cable at the tilt tube while you are there. A dry cable makes steering heavy and gets blamed on the motor far too often.

Battery and electrics

A 12V marine starting battery of around 500 CCA or more is plenty. Keep it in a vented, strapped box, with a fuse on the positive lead and an isolator switch. The 14 amp charging output keeps it topped up on normal runs. If the tender also runs lights, a bilge pump and a small plotter, that output covers it. If you add much more, fit a second battery with a switch.

Measuring a short transom correctly

Lay a straight edge under the hull at the transom. On the centre line, measure from the top of the transom straight down to the straight edge.

• Close to 15 inches: short shaft. The Suzuki DF25ATSW5 for sale is right.
• Close to 20 inches: long shaft. Choose the DF25ATLW5.
• Anywhere between: ask us first.

On a RIB, measure at the keel, not at the tubes. Send a photo with the tape in place and we’ll confirm before you order.

Working tender: a real example

One setup we see often: a 4.2 metre console RIB used as a tender for a 15 metre motor yacht. It carries up to four guests to beaches and restaurants, and the crew uses it for shopping runs and line handling.

• Motor: Suzuki DF25ATSW5 for sale, white to match the yacht and tubes.
• Prop: one inch less pitch than standard, to handle full loads.
• Battery: in the console seat box, with an isolator.
• Fuel: tank secured under the seat, water separating filter.
• Lift: davit rated well above the total weight of RIB, motor, fuel and battery.

The crew likes the key start, since guests can’t flood an EFI motor, and the power tilt makes beaching and lifting aboard easy. Always add up the full weight before lifting on davits, and leave a margin.

Small console skiff example

A different buyer runs a 13 foot white fibreglass skiff with a centre console on a lake. One or two people, light gear. He kept the factory prop, and the Suzuki DF25ATSW5 for sale reaches the upper part of the rpm range with room to spare. His only change was fitting a tachometer so he could cruise at the same setting every trip.

Charter and rental use

Dive shops, resorts and boat rental businesses buy the Suzuki DF25ATSW5 for sale for small console RIBs that customers drive themselves or that staff run all day. The reasons are practical. Key start means no one wrestles a pull cord. The EFI doesn’t flood when an inexperienced driver plays with the throttle before starting. The three cylinder motor is quiet enough that guests can talk.

Rental motors take a beating, so a few extra habits help. Check the prop every day for dings. Look at the tell tale before each hire. Keep a spare kill switch lanyard on board, because they go missing. And tell us when you ask for a quote that the motor is for commercial use, since warranty terms differ from private use.

Daily start-up routine

This takes a minute and catches most problems before they leave the dock. We give the same list to every buyer of the Suzuki DF25ATSW5 for sale.

1. Check the fuel level and open the tank vent.
2. Squeeze the primer bulb until it is firm.
3. Lower the motor so the water intake is submerged.
4. Clip the lanyard to yourself.
5. Control in neutral, turn the key.
6. Check for a steady tell tale stream within a few seconds.
7. Let it idle briefly before putting it in gear.

After the run, tilt up, flush if you were in salt, and turn the battery isolator off.

What owners tell us

The comments we get back about the Suzuki DF25ATSW5 for sale are mostly about how quiet and easy it is. Tender crews say guests notice the lack of noise. Skiff owners say it starts first time even after a few weeks of sitting, as long as the fuel is fresh. The most common regret is not measuring cable runs properly, which is a rigging issue rather than a motor one.

Break-in

The manual calls for about ten hours of break-in. Rings and bearings settle in during this time. Here is the way we explain it:

1. Hours one and two: keep below half throttle, vary speed.
2. Hour three: up to three quarters, short bursts to full.
3. Hours four to ten: use the full range, avoid long periods at wide open.
4. Every start: check the tell tale stream.

Do the first service on the Suzuki DF25ATSW5 for sale after break-in: oil, filter and gear oil.

Maintenance schedule

Tenders on charter or busy yachts rack up hours fast. Service the Suzuki DF25ATSW5 for sale by hours, not by the calendar. Use Suzuki 10W-40 marine oil or a marine four stroke oil of the same grade.

Fuel

The Suzuki DF25ATSW5 for sale runs on regular unleaded at 87 AKI or 91 RON minimum. No need for premium. On yachts, tender fuel often sits in jerry cans for weeks, so add stabiliser and fit a water separating filter. Water in fuel is the most common cause of trouble we see on tender motors.

Keep the tank vent open while running. A closed vent starves the motor after a few minutes and looks just like a pump fault.

Salt water care for a tender motor

Tender motors live in salt every day. These habits keep the Suzuki DF25ATSW5 for sale healthy:

• Flush with fresh water daily if possible, or at least every few days.
• Tilt the leg up whenever the tender is left in the water.
• Rinse the clamp bracket, trim rams and steering link.
• Check anodes monthly. Replace at half size, never paint them.
• Spray corrosion inhibitor under the cowl.
• Wipe salt off the white cowl so it doesn’t dull the finish.

Storage and trailering

For a lay up, run stabilised fuel through the motor, flush it, change engine and gear oil, grease every fitting and disconnect the battery. Store the Suzuki DF25ATSW5 for sale with the powerhead above the gearcase. On a trailer, use a transom saver for long trips rather than leaning on the trim rams.

Common problems and fixes

Key does nothing

If the Suzuki DF25ATSW5 for sale won’t crank, make sure the lever is in neutral and the lanyard is clipped on. Then check the battery and the main fuse.

Stalls after a few minutes

If the Suzuki DF25ATSW5 for sale stalls after a few minutes, look for a closed tank vent or a kinked fuel line. Open the vent and check the line routing.

Prop slips in turns

On the Suzuki DF25ATSW5 for sale this means it is trimmed out too far, or mounted too high. Trim in before turning and lower the motor one hole if it keeps happening.

Weak cooling stream

Clear the tell tale with a thin wire. If still weak, check the intake for weed or plastic bags and plan an impeller change.

Trim won’t lift the motor

Check battery voltage and the trim relay. In the meantime, open the manual release and tilt by hand.

Suzuki DF25ATSW5 for sale compared with related models

• Suzuki DF25ATS5: the same motor in grey, at a slightly lower price.
• Suzuki DF25ATLW5: white remote with a 20 inch long shaft.
• Suzuki DF25ATHSW5: white short shaft with tiller and power trim.
• Suzuki DF20ATSW5: the white 20 HP short shaft remote, for lighter tenders.
• Suzuki DF30ATLW5: the white 30 HP on the same block, long shaft.
• Suzuki DF15ASW5: a white 15 HP tiller for small dinghies.

Browse the 25 HP Suzuki range or every Suzuki outboard we sell.

20, 25 or 30 for a tender?

A 20 suits a light tender carrying two. With four aboard, the 25 gets on plane far more easily. The 30 makes sense only if the tender is rated for it and the davit can take it. For most console RIBs around four metres, the Suzuki DF25ATSW5 for sale is the sensible middle.

How to buy the Suzuki DF25ATSW5 for sale from us

We are a dealer that sells new outboards and ships them worldwide. Ordering works like this:

1. Send us the model and the delivery location, a port, marina or city.
2. We reply with a written quote: motor, crate and freight.
3. You approve and pay.
4. We ship the Suzuki DF25ATSW5 for sale and send tracking.

Read our terms and conditions and the refund and return policy. Contact us through the contact page. More about the shop and customer reviews are on the site too.

Warranty

Suzuki’s factory limited warranty covers the motor. Its length depends on the region where the motor is registered and on recreational versus commercial use. Some regions give up to five years for recreational owners, and charter or commercial use usually gets less. We confirm what applies in your area in the quote. Suzuki’s global marine site lists regional distributors.

Delivering the Suzuki DF25ATSW5 for sale to yachts and marinas

We can ship to a marina, agent or freight forwarder if your yacht is moving. Tell us the timing and we will plan the freight around it.

What is in the crate

• Suzuki DF25ATSW5 outboard, white
• Aluminium propeller
• Fuel tank and line, as packed for this model
• Remote control and wiring loom where part of the market package (confirmed in writing)
• Battery cables
• Tool kit
• Owner’s manual and warranty documents

Not in the crate: battery, steering system, control cables. We can quote them with the Suzuki DF25ATSW5 for sale so it all arrives together.

Checklist before ordering

• Transom measured at about 15 inches, at the keel line.
• Boat or RIB rated for 25 HP and the motor weight.
• Console has room for a side mount control.
• Steering planned and cables measured.
• Battery, box and isolator ready.
• Davit or lift rated for the total weight, if used.
• White is what you want. Grey is the DF25ATS5.

Suzuki DF25ATSW5 for sale: FAQ

Is this motor new?

Yes. The Suzuki DF25ATSW5 for sale is brand new and ships in the sealed Suzuki crate.

Is it a good tender motor?

The Suzuki DF25ATSW5 for sale is a good tender motor for console RIBs and tenders with a 15 inch transom. It is quiet, starts with a key and has power tilt for beaching.

Will it run if the battery dies?

Yes. Start it with the emergency recoil. The EFI runs without battery power once the motor turns.

Is white paint more fragile?

No. The Suzuki DF25ATSW5 for sale uses the same paint system as grey. It just shows dirt sooner.

Do you ship to my country?

We ship worldwide. Send your location and we will quote the Suzuki DF25ATSW5 for sale delivered before you pay.

Where do I find service parts?

Any Suzuki marine dealer stocks filters, plugs and impellers. Our blog has service guides too.

Order yours

The Suzuki DF25ATSW5 for sale is a quiet, white, fuel injected 25 for console RIBs, tenders and small skiffs with short transoms. Price is on the page. Ask for a delivery quote through the contact page or see more motors in our shop.