Yamaha Outboards - a powerful four stroke portable outboard
This 2.5 horse power outboard provides exceptional manoeuvrability with its 360 degree steering, allowing full thrust when going astern. Interested in buying a Yamaha F2.5 outboard engine? You can buy the Yamaha F2.5a outboard engine securely online at our sister web site Solent Yamaha or call us 01489 583813.
These remarkable little Yamaha outboards have won the hearts of of owners around the world because, thanks to Yamahas pioneering technology they've found a capable, reliable, stylish pick up and go 4 stoke outboard that's a joy to use and a pleasure to own.
The class leading Yamaha 2.5hp four stroke outboard engine features:
- Proper gear lever operated clutch facility
- Marine quality twist grip throttle
- Full water cooling 360° steering
- Smoother, quieter and reliable operation
The Yamaha F2.5 outboard engine is the most refined single cylinder four stroke on the market. As it is a four stroke engine this makes it perfect for inland and coastal water, where its low noise levels are fully appreciated.
The Yamaha F2.5hp outboard engine exudes quality and is the best constructed engine in this class. Easy to carry, able to be laid down on its front or on its side, unlike all its competitors which can only laid on one side, all help to make this baby of the Yamaha range the number one choice.
The Yamaha F2.5A hp outboard engine is the standard shaft model, and for those clients who’s boats have a higher transom, the long shaft version is also available.
Yamaha Outboard Engines Technical Specifications
|
Yamaha Outboards Specifications |
F2.5A |
F4A |
F6A |
|---|---|---|---|
Engine type |
4-Stroke | 4-Stroke | 4-Stroke |
Number of cyclinders / Configuration |
1 | 1 | 2/in-line |
Bore x Stroke |
54 x 31.5 | 59 x 41 | 56 x 40 |
| Displacement (cm3) |
72 | 112 | 197 |
| Full throttle range (rpm) |
5250-5750 | 4000-5000 | 4500-5500 |
| Prop shaft output at mid range (kW/rpm) |
1.8/5500 | 2.9/4500 | 4.4/5000 |
| Weight with propeller (kg) Weight without propeller (kg)* |
F2.5AMHS: 17.0 F2.5AMHL: 17.5 |
F4AMHS: 22.0 F4AMHL: 23.0 |
F6AMHS: 37.0 F6AMHL: 38.5 |
| Recommended boat transom height (mm) |
S: 381 L: 508 |
S: 381 L: 508 |
S: 381 L: 508 |
| Carburettors | 1 | 1 | 1 |
| Electronic fuel injection | - | - | - |
| Fuel tank capacity | 0.9 | 1.1 | Seprate,12 |
| Oil pan capacity (litres) |
0.4 | 0.5 | 0.8 |
| Lubrication | Splash | Splash | Wet-sump |
| Ignition / Advance system | TCI | TCI | CDI/Computer |
| Lighting coil / alternator | - | - | 12V - 6A |
| Gear ratio | 13:27 | 13:27 | 13:27 |
| Starter system | Manual | Manual | Manual |
| Steering | Tiller handle | Tiller handle | Tiller handle |
| Throttle and shift controls | Twist grip F-N/slide shift |
Twist grip F-N-R/slide shift |
Twist grip F-N-R/slide shift |
| Trim & tilt method (Trim angle) |
Manual (0°,4°,8°,12°) |
Manual (0°,4°,8°,12°,16°,20°) |
Manual (0°,4°,8°,12°,16°) |
| Number of Propeller options Size range (ins) |
5 5 - 8¼ |
3 6½ - 8 |
6 5 - 8½ |
* The kW data is based on the ICOMIA 28 standard, measured at the prop shaft