Suzuki 25 HP DF25ATHS5 Outboard Motor

Description

The Suzuki DF25ATHS5 for sale on this page is a new 25 HP Suzuki tiller outboard with a 15 inch short shaft, power trim and tilt, and electric start with a recoil rope as backup. It ships in the sealed factory crate, the price is listed above, and we deliver worldwide after you approve a written freight quote.

Short transoms usually mean basic motors. The Suzuki DF25ATHS5 for sale is the exception. It gives a small boat with a 15 inch transom the same push button starting and power tilt that the bigger tiller boats get.

Who the Suzuki DF25ATHS5 for Sale Is Built For

We sell this model mostly to three kinds of buyer. First, owners of 12 to 14 foot aluminium boats with a short transom who launch and beach a lot and are tired of lifting the motor by hand. Second, inflatable and RIB owners with a 15 inch transom who want trim control to keep the bow down in chop. Third, older boaters who want everything on a switch.

If your transom measures about 15 inches and your capacity plate allows 25 HP, the Suzuki DF25ATHS5 for sale is about as convenient as a small tiller motor gets.

Who should look elsewhere

• Boats with a 20 inch transom. Pick the DF25ATHL5 long shaft.
• Boats with a steering console. Look at the remote DF25ATS5.
• Buyers on a tight budget who do not mind tilting by hand. The DF25AES5 or DF25AS5 cost less.

Breaking Down the Suzuki DF25ATHS5 for Sale Model Code

• DF: Suzuki four stroke outboard
• 25: 25 horsepower
• A: the three cylinder EFI A series
• T: power trim and tilt
• H: tiller handle
• S: short shaft, 15 inches (381 mm)
• 5: the later production run of the same motor

Electric start is part of Suzuki’s power tilt tiller package, so there is no E in the code. With no W, the Suzuki DF25ATHS5 for sale comes in the standard dark finish. A white version, the DF25ATHSW5, is also in stock.

Suzuki DF25ATHS5 for Sale Specifications

The engine block, EFI, gearcase and tilt unit on the Suzuki DF25ATHS5 for sale are shared with the long shaft model. Only the midsection length is different, so service parts are easy to get.

Why Power Tilt on a Short Shaft Makes Sense

People sometimes think power tilt on the Suzuki DF25ATHS5 for sale is overkill on a small boat. Our customers who bought it disagree. Here is why.

Small boats beach more

Short transom boats are often run up onto sand, gravel or a riverbank. With the Suzuki DF25ATHS5 for sale you tap a switch as you come in and the motor lifts clear. No scrambling to the stern, no unlocking a tilt lever while the boat drifts.

Small boats are sensitive to trim

On a light hull, a little trim changes everything. Trim in to pop onto plane and keep the bow down into a head sea. Trim out on flat water for more speed and less fuel. A manual trim rod is set once at the dock. Power trim lets you adjust as conditions change.

Launch and retrieve

At a busy ramp, being able to lift or drop the motor from your seat saves time and stress. The Suzuki DF25ATHS5 for sale also makes trailer loading easier, since you can set the motor to the exact height you need.

Manual release

If the battery is dead with the motor tilted, open the manual release valve on the bracket and lower the motor by hand. Close the valve again before you run, or the motor will not hold trim.

Engine Features on the Suzuki DF25ATHS5 for Sale

Battery-less EFI

The ECU and injectors are powered by the flywheel as it spins. A flat battery stops the starter and the tilt, but the Suzuki DF25ATHS5 for sale still starts on the rope and runs perfectly well.

Lean Burn Control

The ECU leans out the mixture when it is safe to, mainly at steady cruise. Suzuki’s testing showed up to 15 percent better economy than the older carbureted 25.

Three cylinder smoothness

Compared with the twins in this class, three cylinders give a smoother idle and less buzz through the tiller. Roller rocker arms and an offset crankshaft trim internal friction.

Charging

A 12V 14A alternator keeps the battery up and has spare output for a fish finder and lights.

Freshwater flush

Hose connector on the lower cowl. Use it after every salt or dirty water run.

Checking Your Transom Before You Buy the Suzuki DF25ATHS5 for Sale

1. Stand at the stern and find the centre of the transom.
2. Measure from the top of the transom straight down to the bottom of the hull. On a V hull, hold a straight edge along the keel and measure to that line.
3. Around 15 inches: the Suzuki DF25ATHS5 for sale is correct.
4. Around 20 inches: you need a long shaft.
5. Somewhere in between: send us photos and the boat make and model.

Many inflatables list the transom height in their manual. Check it before ordering the Suzuki DF25ATHS5 for sale, since a few models that look small actually take a long shaft.

Mounting height

Start with the anti-ventilation plate level with the hull bottom. If the prop blows out in turns, lower the motor. If there is heavy spray off the lower unit and the boat feels slow, raise it. On a flat bottom boat, level with the hull is usually close to right.

Rigging an Inflatable or RIB with the Suzuki DF25ATHS5 for Sale

Inflatables are a big part of the market for this motor, and they have their own quirks.

• Battery placement: keep the battery forward of the transom, ideally under a seat or in the console, so the stern does not squat.
• Cable routing: run the battery cables along the floor and secure them, so they cannot chafe on the tubes or catch on the tilt bracket.
• Transom plates: inflatable transoms are often thin plywood. A plate on each side spreads the clamp load.
• Trim: RIBs respond well to trim. Use trim in to get on plane with a load, and trim out a touch once running to lift the bow and stop it slapping.
• Weight: at around 160 lb the Suzuki DF25ATHS5 for sale is a substantial load on a small RIB transom. Check the maker’s maximum motor weight as well as the horsepower limit.

Beaching Technique

Coming into a beach is where the Suzuki DF25ATHS5 for sale earns its price. Slow right down well before the shallows. As you glide in, hold the tilt switch until the prop is just below the surface, then cut the engine or idle in on the last bit of momentum. Once the hull touches, tilt fully up.

Going out, push off into knee deep water first, lower the motor, check the tell-tale, then go. Grinding the skeg on sand is the most common bit of damage we see on small tillers, and power tilt almost eliminates it if you use it.

Installing the Motor

Most owners can fit a tiller 25 with a helper. Lift it onto the transom, centre it, and snug the clamp screws. Drill for through bolts, fill each hole with marine sealant, and fit the bolts with large washers on the inside. Connect the battery cables, red to positive and black to negative, and run the tilt through its full range with the boat on the trailer to check nothing pinches.

Before the first trip, check the gear oil and engine oil levels. The Suzuki DF25ATHS5 for sale ships with oil already in it in most cases, but confirm on the dipstick and follow the pre-delivery steps in the owner’s manual.

What Else You Need to Rig the Suzuki DF25ATHS5 for Sale

• Battery: marine starting battery, around 500 to 650 CCA, secured in a box.
• Through bolts: bolt the bracket through the transom with sealant.
• Transom plate: on inflatables and thin transoms, spread the clamp load.
• Fuel filter: add a water separator if you use a built-in tank.
• Trailer support: protects the transom and tilt rams on the road.

Everything else is on the tiller. No cables, no control box, no gauges. That keeps a Suzuki DF25ATHS5 for sale package simple and affordable.

Prop selection

Wide open throttle with your normal load should fall between 5,000 and 6,000 rpm. Below that, reduce pitch. Hitting the limiter, increase pitch. On a loaded inflatable we often fit a 9 or 10 pitch. On a light aluminium boat the stock 11 usually works. Stainless props are available too, but aluminium is kinder to the gearcase if you hit rocks.

Weeds, Stumps and Shallow Rivers

n

Small short shaft boats spend a lot of time in skinny water. With power tilt you can lift the motor a little and idle across a shallow bar from your seat. Keep it slow and watch the tell-tale, because the water intake sits higher when the motor is tilted and the pump can run short of water at speed.

n

In weedy water, tilt up now and then to clear the prop and the intake grilles. Check behind the prop for wrapped fishing line at every service. Line can cut the prop shaft seal, and the first sign is milky gear oil. Catch it early and it is a cheap seal job.

n

Break-In: The First 10 Hours

• First 15 minutes at idle and slow speed in gear.
• Next 45 minutes below half throttle, varying rpm.
• Second hour up to three quarter throttle, short full throttle bursts allowed.
• Hours 2 to 10 normal running, but avoid long stretches at full throttle.

Change the engine oil and gear oil at 20 hours or one month, whichever comes first. It is the most important service in the life of the Suzuki DF25ATHS5 for sale.

Routine Maintenance for the Suzuki DF25ATHS5 for Sale

Genuine filters, plugs and impeller kits are listed on the Suzuki genuine parts and accessories site. We are happy to add a first service kit to your Suzuki DF25ATHS5 for sale order.

Salt Water Care for the Suzuki DF25ATHS5 for Sale

• Flush with fresh water for 10 to 15 minutes after every salt trip.
• Tilt up whenever the boat is moored or parked on the beach.
• Rinse and spray the tilt rams, bracket and wiring plugs with corrosion guard.
• Leave anodes unpainted, and replace them at half wear.
• Wash salt off the cowl. Dried salt holds moisture against the paint.

Owners on tropical coasts who keep to this routine get long service from the Suzuki DF25ATHS5 for sale. Most corrosion problems we see come from motors left down in the water and never flushed.

Putting It Away for the Winter

1. Add fuel stabiliser and run the Suzuki DF25ATHS5 for sale for ten minutes so treated fuel reaches the injectors.
2. Change the engine oil and gear oil.
3. Flush the cooling system with fresh water.
4. Grease the swivel and tilt points.
5. Trim the motor fully down so the tilt rams are retracted.
6. Remove the battery and keep it on a maintenance charger.
7. Fit a breathable cover.

Running Costs Year to Year

For a typical owner doing 50 to 100 hours a season, the Suzuki DF25ATHS5 for sale is cheap to keep. Each year you are looking at engine oil, gear oil and a set of plugs if they are worn. Every couple of years add an impeller kit and anodes. The battery needs replacing every few seasons.

Fuel is the biggest cost, and the Lean Burn system helps there. Compared with an older carbureted two stroke 25, owners often tell us they burn noticeably less fuel for the same trips.

Keep receipts and the service record. Power tilt Suzuki tillers hold their value well, and a documented motor sells faster.

Spares We Suggest Carrying

A small dry bag with a spare prop nut and cotter pin, a spark plug with a plug spanner, a spare kill cord, two spare fuses for the tilt circuit, and a short length of fuel hose with clamps. Add a basic multi tool and a torch. That covers most small breakdowns on the Suzuki DF25ATHS5 for sale without a call for a tow.

Small Problems on the Suzuki DF25ATHS5 for Sale and How to Fix Them

Tilt switch does nothing

Check the battery charge, then the fuse, then the tilt motor plug for corrosion.

Motor will not hold trim

The manual release valve is likely open a little. Close it firmly.

Starter clicks

Weak battery or dirty terminals. Pull start the Suzuki DF25ATHS5 for sale to get home, then sort out the battery.

No water from the tell-tale

Stop the engine. Clear the hole with a wire, check the intake for a bag or weed, then suspect the impeller.

Prop ventilating in turns

Motor mounted too high, too much trim out, or a damaged prop. Trim in, check the prop, lower one hole if needed.

On the Water with the Suzuki DF25ATHS5 for Sale

Push the button in neutral and it starts straight away. The idle is calm. Shift into forward, give it throttle, and a light boat gets on plane with little fuss. Bump the trim up once you are running and you will feel the steering go light and the speed rise.

Trolling is where three cylinders really show. The Suzuki DF25ATHS5 for sale ticks over smoothly at low rpm and holds speed without stumbling.

Fuel use on the Suzuki DF25ATHS5 for sale is modest. Owners report roughly a gallon an hour at an easy cruise, less at troll, and around twice that at full throttle. Your boat and load change these figures.

Top speed depends on the hull. A 12 to 14 foot aluminium boat with one or two people commonly reaches the 20s in mph. Inflatables loaded with gear run slower. Ask us for an estimate for your boat.

Suzuki DF25ATHS5 for Sale vs Other Models We Stock

• Suzuki DF25ATHSW5: the same motor in white.
• Suzuki DF25ATHL5: the 20 inch long shaft version.
• Suzuki DF25AES5: short shaft electric start tiller with manual tilt, lower price.
• Suzuki DF25AS5: rope start, manual tilt, lightest and cheapest.
• Suzuki DF25ATS5: short shaft with power trim and tilt for remote steering.
• Suzuki DF25ATHS2: the earlier production listing of this same model.
• Suzuki DF30ATHL5: 30 HP power tilt tiller if you have a long transom and a heavier boat.

All of them are in our 25 HP Suzuki outboards section, and the full range sits under Suzuki outboards. Suzuki’s own description of the DF25A design is on the Global Suzuki DF30A and DF25A page.

How to Order the Suzuki DF25ATHS5 for Sale

Freight quote first

Send us your delivery address or nearest port. We reply with a written shipping quote and estimated transit time. You pay only when you agree with the total.

Shipping worldwide

We ship by sea, air or courier, depending on destination. The Suzuki DF25ATHS5 for sale travels in its original Suzuki crate with extra strapping. Tracking is sent once the freight is booked.

Import

We provide the commercial invoice and packing list. Duties and taxes are set and collected by your country.

Warranty

Suzuki warranty cover varies by region and by private or commercial use. We confirm the terms for your location before you order. Shop terms are in our refund and return policy and terms and conditions.

What Ships in the Crate

• Suzuki DF25ATHS5 outboard with power trim and tilt, assembled
• Tiller handle with throttle, shift, stop switch and friction adjusters
• Aluminium propeller and hardware
• Portable fuel tank, fuel hose and primer bulb
• Battery cables
• Kill cord lanyard
• Tool kit and spares
• Owner’s manual and warranty paperwork

No battery is included with the Suzuki DF25ATHS5 for sale. Carriers usually will not ship one with the motor, so pick one up locally.

Final Checks Before You Buy

1. Transom about 15 inches tall.
2. Boat rated for at least 25 HP.
3. Room for a battery and a secure mount.
4. Transom solid enough for through bolts.
5. Delivery address or port ready.
6. Import rules for your country checked.

Read past buyers’ experiences on our reviews page, see who we are, or check the blog for rigging and care articles.

Suzuki DF25ATHS5 for Sale: FAQ

Does the Suzuki DF25ATHS5 for sale have electric start?

Yes. Push button electric start, with a recoil rope as a backup.

Can it run without a battery?

Yes. The battery-less EFI runs off the flywheel. You lose electric start and power tilt until the battery is charged.

Will it fit my inflatable?

If the transom is about 15 inches and the boat is rated for 25 HP, yes. Send us the model and we will check.

How much does it weigh?

Roughly 158 to 163 lb depending on the source, with the power tilt unit fitted.

What is the difference between the 2 and 5 versions?

The 5 is a later production run of the same DF25ATHS. Engine, features and service parts are the same family.

Is it new?

Yes. New, never mounted, in the original factory crate.

Order Your Suzuki DF25ATHS5 for Sale

Short transom, tiller steering, and you want everything on a switch: the Suzuki DF25ATHS5 for sale is the one. Add it to your cart or contact us for a delivery quote. You can also browse the full shop or the official Suzuki outboards range.