Used
Used Yamaha 25HP Outboard
SKU YAM-25HP2STROKE-U | Serial 6EK-7817476
$2,250
- Shaft
- Long, 20in
- Start
- Electric start
- Steering
- Remote steering
- Trim
- Manual tilt
- Warranty
- 90 day parts and labor warranty from us, or the balance of factory cover if it runs longer.
- Serial number
- 6EK-7817476, printed on your invoice and matched to the unit that ships.
- Payment
- Bank transfer, Apple Pay, Chime and Zelle. Crypto takes 15 percent off the engine price.
Add to your order
Shipped in the same crate, so there is no second freight charge.
Remote Control Kit
Fits remote steering engines from 40hp up.
$1,010
Binnacle Control Kit
For console installations with a top mount throttle.
$1,340
Propeller, pitched to order
Send boat length, weight and use and we pitch it for you.
$420
First Service Kit
The twenty hour service, boxed with the engine.
$148
Used Yamaha 25HP Outboard for Sale
Buy a used Yamaha 25HP two stroke outboard for sale online, a 1997 engine on a 20 inch long shaft with electric start and remote steering. Remote steering at 25 horsepower is less common than tiller and more useful than people expect: if your boat has a console, this is the engine that suits it, and it means you sit forward out of the weather rather than at the stern holding an arm. Two strokes at this size are light, simple and cheap to repair, which on a small aluminum hull is a real advantage. Order it from this page, or ask us for compression figures and photographs of whatever you want to see first.
Supplied with
- Engine, cowling and mounting hardware, factory assembled
- Owner manual, warranty booklet and registration certificate
- Propeller not included on engines from 40hp up, pitched to order on request
- Remote control box, cables and rigging tube available as an add on
- First service kit available at checkout, oil filter and gear oil
Not sure on shaft length
Measure vertically from the top of the transom to the lowest point of the hull. Fifteen inches takes a short shaft, twenty inches a long shaft, twenty five inches an extra long. This engine is a long shaft, 20in.
Remote steering on a 25HP outboard
Most 25s are tiller engines, so a remote steering one is worth pointing out.
It means the boat has a console, or can have one, and you sit forward with a wheel and a throttle rather than at the transom with the engine in your hand. On anything more than a short run that is a different experience, particularly in cold or wet weather.
It also frees the stern. On a small fishing boat that is usable space rather than somewhere the driver has to sit.
What comes with it is a control box, cables and a harness, which have to match. Ask what this listing includes before you order, because it changes the real cost more than anything else here.
Yamaha 25HP specs as listed
| Specification | This Yamaha 25 |
|---|---|
| Model year | 1997 |
| Output | 25 horsepower at the propeller shaft |
| Engine type | Two stroke |
| Shaft length | 20 inch, long |
| Starting | Electric, key switch |
| Steering | Remote, side mount or binnacle |
| Trim and tilt | Manual tilt |
| Recommended oil | TC-W3 two stroke oil |
| Condition | Used, compression tested before listing |
Buying a small two stroke
Two strokes at this size are about as simple as marine engines get, which makes them a low risk used buy if the compression is right.
Check compression on both cylinders and make sure the readings are close to each other. Check whether the oil injection works or it has been converted to premix. Check the gear oil for water and the prop shaft for line damage.
They are lighter than four strokes at the same output, which on a small aluminum boat changes how the hull sits and planes.
More at this price point on 2-stroke outboard motors.
What a 25HP outboard suits
Jon boats, small aluminum fishing hulls, skiffs and inflatables. It will plane a small boat with two people aboard, which a 15 usually will not.
A 20 inch long shaft suits a standard transom. Many jon boats take 15 inches, so measure from the top of the transom straight down to the hull bottom at the centerline before ordering.
Running a Yamaha 25HP two stroke
If you have not owned a two stroke before, three habits keep one alive and none of them is difficult.
Fuel first. Whether it mixes by hand or injects oil, get that right and keep the ratio consistent. Running lean on oil is how these engines are destroyed, and it is not recoverable.
Then storage. Stale fuel is as bad for a two stroke as for anything else, so stabilise it or run the tank down before the boat sits.
Then the water pump. A two stroke gives less warning than a four stroke before overheating does damage, so change the impeller on a schedule rather than waiting for the telltale to weaken.
Do those three and a small two stroke will outlast a lot of newer engines.
Frequently asked questions
Is remote steering unusual on a 25HP outboard?
Less common than tiller, yes. It suits boats with a console, where you sit forward out of the weather and the stern stays clear. Tiller suits open boats where the deck matters more.
Does this Yamaha 25 come with controls?
Ask before ordering. Remote engines need a control box, cables and a harness, and whether they are included changes the real cost considerably. We confirm it in writing.
Are small two strokes worth buying?
For light use, often yes. They are lighter, simpler and cheaper than four strokes at the same output, and the lighter weight helps on a small aluminum hull.
What should I check on a used Yamaha 25HP two stroke?
Compression on both cylinders and how close the readings are, whether oil injection works or it runs on premix, the gear oil for water, and the prop shaft for line damage.
What size boat takes a 25HP outboard?
Jon boats, small aluminum fishing hulls, skiffs and inflatables. It will plane a small boat with two aboard. Check your capacity plate before ordering.
Specifications
- Horsepower
- 25hp at 5000 rpm
- Model year
- 1997
- Shaft length
- 20 in, long
- Starting system
- Electric, key switch
- Trim and tilt
- Manual tilt
- Steering
- Remote, side mount or binnacle
- Recommended fuel
- 87 octane minimum, unleaded
- Recommended oil
- TC-W3 two stroke oil
- Warranty
- 90 days parts and labor, or the balance of factory cover
- Recorded hours
- On request
Shipping and crating
The engine is bolted upright to a purpose built pallet, braced at the cowling and skinned before it leaves the warehouse. Crates are photographed on the dock and the photographs are attached to your order record.
Freight is curbside by default. The carrier calls ahead to arrange a delivery window, and you will need a second pair of hands or a tractor to take the crate off the truck. Liftgate service and delivery direct to an authorized dealer can both be added at checkout.
Standard transit is five to ten working days depending on zone, express is one to three. Alaska, Hawaii and Puerto Rico are quoted separately.
| Destination zone | Freight on this engine | Transit |
|---|---|---|
| Standard freight | $100 | About a week |
| Express freight | $250 | 1 to 3 days |
Warranty
This used Yamaha is compression tested, run on the dyno and listed with its hour count and service history. It carries a ninety day parts and labor warranty from us unless the balance of factory cover runs longer.
Warranty work can be carried out at any authorized Yamaha dealer in the United States. You are not tied to us for servicing, and buying online does not shorten or void the factory cover.
The serial number on this listing, 6EK-7817476, is the unit that ships to you. It appears on your invoice and on the warranty registration.
3 years, extendable to 5 years
Extended service cover can be added within the first year. Ask the sales desk to add it to your invoice.
