YAMAHA 15 HP F15SEHA OUTBOARD MOTOR

Description

We have the Yamaha F15SEHA for sale, new in its crate, and we ship it to buyers all over the world. It is Yamaha’s 15 horsepower four-stroke with a 15 inch short shaft, tiller steering and electric start. Turn the key and it fires. Under the cowling is a 362 cc twin cylinder engine, the largest displacement in its class, with a 10 amp alternator that keeps your battery topped up while you run. It weighs about 117 pounds.

Electric start is the reason most people choose this version over the pull start F15SMHA. If you start and stop the motor many times a day while fishing, if you have a shoulder or back that does not enjoy pull cords, or if you already carry a battery for a fish finder and lights, the convenience is hard to beat. The Yamaha F15SEHA for sale gives you that, along with the strong, relaxed performance of the Yamaha 15. Specs, uses, setup, maintenance and ordering details are all below.

Yamaha F15SEHA Specifications

Yamaha publishes the F15 specs on its 25, 20 and 15 HP portables page. The Yamaha F15SEHA for sale is the short shaft, electric start tiller model from that range.

What the Model Code Means

F is four-stroke. 15 is horsepower. S is the 15 inch short shaft. E is electric start. H is tiller handle. A is the design generation. The pull start version is the Yamaha F15SMHA, and the long shaft electric start version is the Yamaha F15LEHA.

Why Electric Start Is Worth It

On a pull start motor, every stop means another pull. For many owners that is fine. But if you fish, you may stop and start a dozen times in a morning: drift a bank, run back up, drift again, move to the next spot. With the Yamaha F15SEHA for sale, each restart is just a turn of the key. Over a day, that saves a lot of effort, and it means you never hesitate to shut the motor off when you want quiet.

Electric start also helps anyone who finds pull starting difficult: older owners, people with shoulder or back problems, or younger family members who are learning to run the boat. A key start puts the motor within everyone’s reach.

The other benefit is the 10 amp alternator. While the engine runs, it charges your battery, which can also run a fish finder, navigation lights or a small bilge pump. Many owners find that one battery plus the alternator covers their needs for a day on the water.

The trade-offs are a little more weight, about six pounds over the pull start model, and the need to buy and look after a battery. For most people who choose electric start, those are small prices to pay.

Boats That Suit the Yamaha F15SEHA for Sale

Small fishing boats

On a 12 to 14 foot aluminium boat or jon boat with a 15 inch transom, the Yamaha F15SEHA for sale is a great fishing motor. It gets you to the spot quickly, idles smoothly for trolling, and restarts instantly every time you move. The alternator keeps the battery charged for your electronics.

RIBs and larger inflatables

On RIBs and inflatables from about 11 to 14 feet rated for 15 HP, it gives a lively planing ride with two or three people. As a tender motor on a larger yacht, key start is a real convenience when you are coming and going from the boat several times a day.

Small skiffs and work dinghies

Light skiffs and work dinghies with a 15 inch transom, where several people may use the boat, benefit from the simple key start.

How It Runs

Turn the key with the motor in neutral, and the 362 cc twin fires. Push the choke on a cold morning for the first start; once warm, it starts instantly. The engine is smooth and quiet, with little vibration through the tiller. Open the throttle and the boat climbs onto the plane cleanly. Shift at idle with the gear lever; reverse is strong for docking. The tiller has adjustable steering friction so the motor holds a straight course.

Yamaha also built easy access into the F15, so the oil filler, dipstick and fuel system parts are simple to reach for routine checks. That makes looking after the Yamaha F15SEHA for sale quick and painless.

Battery and Wiring

You need a 12 volt marine starting battery. Mount it in a proper battery box, secured so it cannot slide, and connect it with the cables supplied or recommended for the motor. Keep the terminals clean and tight. If you run electronics from the same battery, consider a battery switch so you can isolate the starting circuit. Over winter, take the battery home, keep it charged and store it somewhere cool and dry.

Fuel

The Yamaha F15SEHA for sale runs from a separate portable tank with a primer bulb hose. Open the tank vent, squeeze the bulb until firm and start. Use fresh unleaded with no more than 10 percent ethanol. Add stabiliser if the boat will sit for more than a few weeks.

Fitting the Motor

Check your boat’s capacity plate for maximum horsepower and engine weight. At about 117 pounds, the Yamaha F15SEHA for sale is a two-person lift. Clamp it in the centre of the transom with the anti-cavitation plate at or just below the bottom of the hull, tighten the clamps firmly and, since electric start motors usually stay on the boat, consider through-bolting. Fit a safety line. Set the trim rod so the leg is vertical when you are running. Mount the battery, connect the cables, connect the fuel, check the oil, then start in neutral and confirm the cooling water stream.

Break-In

For the first hours, run at varied low and medium throttle, add short bursts higher as the hours go on, avoid long full-throttle runs and check the oil before each trip. Change the oil at the end of the break-in. The owner’s manual has the procedure, and Yamaha keeps copies on its owner’s manual page. A gentle start gives the Yamaha F15SEHA for sale the best chance of a long, trouble-free life.

Maintenance

After salt water use, flush with fresh water and rinse the outside. Each season, change the engine oil and gear oil, check the spark plugs, grease the clamp screws, swivel and tilt points, check the prop and anode, inspect the fuel filter and hose, and clean and tighten the battery connections. Every few seasons, replace the water pump impeller. Before winter, run the carburettor dry, change the oil, flush and store the motor upright and the battery somewhere cool, dry and charged.

Troubleshooting

If the Yamaha F15SEHA for sale will not crank when you turn the key, check that it is in neutral, the battery is charged and the connections and fuse are good. If it cranks but will not start, check the fuel vent, hose, primer bulb and fuel freshness, and the kill switch clip. If it floods, push the choke in, open the throttle slightly and try again. If it starts then dies, open the tank vent. If the cooling stream is weak, clear the tell-tale outlet, then check the intake and impeller.

A Day of Fishing

You arrive at the lake before sunrise, clamp-checked and fuelled. A turn of the key and the Yamaha F15SEHA for sale fires. You run across the lake on the plane, then drop to trolling speed along a weed edge. When you find fish, you shut the motor down and drift quietly. Drift over, a turn of the key and you are back up to the top of the drift. You repeat that a dozen times and never once reach for a pull cord. The alternator keeps the fish finder running all morning. At the end of the day, you run home, flush the motor if you were in salt water and take the battery out if the boat will sit.

Using It on a Tender

On a larger yacht tender, the Yamaha F15SEHA for sale makes frequent trips ashore easy. It planes a loaded tender, and the key start means anyone in the crew can run it. Leave it on the tender or lift it with a davit, since it is heavy to move by hand. Tilt it up at anchor overnight and lock it to the transom in busy harbours. Keep the battery in a waterproof box in the tender.

Common Mistakes

The usual mistakes with a new outboard apply here too. Check the oil before the first start. Use plain unleaded, not two-stroke mix. Shift only at idle. Run the carburettor dry before storage. Flush after salt water. Fit a safety line. And with electric start, keep the battery charged; a flat battery is the most common reason an electric start motor will not crank.

Hot and Cold Climates

In hot places, keep fuel fresh, use stabiliser and tilt the motor out of the water when moored. Heat shortens battery life, so check it more often. In cold places, keep the battery fully charged, use a little choke on cold starts, drain all water before frost and change the gear oil before winter.

What Comes in the Crate

The motor arrives assembled with the propeller fitted, the owner’s manual and factory paperwork. A battery is normally bought separately, and a fuel tank may or may not be included depending on the shipment, so ask us. Check the oil tag and level before the first start.

Warranty Notes

Yamaha’s factory warranty terms vary by country and type of use. Ask your local Yamaha dealer what they honour, and keep your invoice and serial number safe.

9.9 or 15 With Electric Start?

Some buyers looking at the Yamaha F15SEHA for sale are also considering an electric start 9.9. Both are Yamaha twins, both start with a key, and both are cheap to run. The difference is how much boat and load you want to move. A 9.9 suits light boats with one or two people. The 15 has a much bigger engine, 362 cc against 212 cc, so it carries more people and gear, stays on the plane in rougher water and feels relaxed doing it. It is heavier, so it suits boats where the motor stays put. If your boat is rated for 15 HP and local rules allow it, the Yamaha F15SEHA for sale is usually the better all-round choice.

Setting Up Electronics

Because the Yamaha F15SEHA for sale charges its battery while running, many owners add a fish finder, GPS or navigation lights to the same system. A few tips make it work well. Use a marine battery in a proper box. Fit a battery switch so you can isolate the starting circuit and never run the battery flat with electronics while the engine is off. Use fused leads for every accessory. Keep wire runs neat and away from the bilge. And remember the alternator puts back a modest charge, so long periods of electronics with the engine off will eventually drain the battery. For heavy electrical loads, a second battery with a charging relay is worth considering.

Teaching the Family to Run It

Key start makes the Yamaha F15SEHA for sale an easy motor to teach. Set a few simple rules for everyone who drives the boat: start in neutral with the kill cord attached, wait for the cooling water stream before shifting, idle down before changing gear, look behind before reversing and tilt up before the shallows. Once those habits are second nature, anyone in the family can take the boat out with confidence.

Lifting and Transporting

At about 117 pounds, the Yamaha F15SEHA for sale should be lifted by two people, keeping the leg pointing down so oil stays in the sump. Disconnect the fuel and battery first. When trailering with the motor on, support the leg with a transom saver. A motor stand at home makes winter storage and service easier.

Choosing a Propeller

The standard prop suits most boats. If your boat is heavy or always loaded, a lower pitch can help the engine reach its full throttle range of 5,000 to 6,000 rpm and improve acceleration. If the engine hits the top of the range too easily, a higher pitch may add speed. Yamaha’s online prop selector is a good starting point, and we can help you choose for the Yamaha F15SEHA for sale.

A Season With the Motor

In spring, the owner of a Yamaha F15SEHA for sale brings the battery back from storage fully charged, connects it, checks the oil, hooks up a tank of fresh fuel and turns the key. If the motor was put away properly, it starts within seconds. Through the summer, it runs to fishing spots, carries the family along the coast and ferries crew from an anchored yacht, starting with a key every time. After salt water trips, a quick freshwater flush keeps the cooling passages clean. In autumn, the oil and gear oil are changed, the carburettor is run dry, the motor goes onto its stand and the battery goes home to be kept charged over winter. Every few seasons, the impeller is replaced. That simple rhythm is what keeps a Yamaha 15 running for years.

Salt Water Care

Yamaha builds its portables to handle salt water, with corrosion resistant alloys, protective paint and a sacrificial anode. Your part is simple. Flush after every salt water trip, rinse the outside, check the anode each season and replace it when it is noticeably worn, and spray the powerhead and electrical connections with a corrosion protection product now and then. With an electric start motor, pay extra attention to the battery terminals and the wiring plugs, because salt air attacks bare metal. Treat the Yamaha F15SEHA for sale this way and it will handle coastal use for many seasons.

Who We Are

We are an online dealer of new outboard motors and we ship worldwide. We keep the Yamaha F15SEHA for sale as a regular stock item, answer questions from people who know outboards and pack every motor carefully for the trip. Our blog has more advice on choosing and caring for an outboard.

Running Costs

The Yamaha F15SEHA for sale is economical: modest fuel use at cruise, very little when trolling, about a litre of oil or less per change, and inexpensive, widely available wear parts. The battery is the only extra running cost compared with the pull start model.

Why Yamaha

Yamaha’s dealers and parts reach almost every country with boats. The F15 is a proven twin with the largest displacement in its class, smooth and dependable. Yamaha outboards also hold their value. That is why we stock the Yamaha F15SEHA for sale.

Compare 15 HP Versions

Browse the 15 HP Yamaha section or the full Yamaha outboard range. If you need more power, see the fuel injected Yamaha F20SWHB.

Ordering

Add the Yamaha F15SEHA for sale to your cart and check out, or contact us first. We confirm stock and delivery, pack the motor with extra protection and send tracking once it ships worldwide. International buyers pay their own import duty and taxes; we provide the paperwork customs needs. See our refund and return policy, terms and conditions, reviews and about us page.

FAQ: Yamaha F15SEHA for Sale

Is the Yamaha F15SEHA for sale new?

Yes, new and crated.

Is the Yamaha F15SEHA electric start?

Yes, with a key switch.

Does the Yamaha F15SEHA for sale charge the battery?

Yes, through its 10 amp alternator.

What transom height does the Yamaha F15SEHA for sale fit?

About 15 inches.

How heavy is the Yamaha F15SEHA for sale?

About 117 pounds.

Is a battery included?

Usually not. Ask us when ordering.

Is the prop included?

Yes.

Is it good in salt water?

Yes, with a freshwater flush after each use.

Final Word

Before ordering, measure your transom, check your boat’s capacity plate and think about where the battery will live in the boat. If the transom is about 15 inches, the boat is rated for at least 15 HP and you have a dry, secure spot for a battery box, the Yamaha F15SEHA for sale will fit right in. If anything is unclear, send us a photo of your transom and the capacity plate and we will confirm the right version for you, so the motor that arrives is the one your boat needs.

If you want the strong, smooth performance of a Yamaha 15 with the convenience of key start, the Yamaha F15SEHA for sale is the one to choose for a 15 inch transom. Add it to your cart, or ask us anything first. Everything else we stock is in the shop.