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Miles offshore, there’s nothing more important than your outboard’s reliability. Over years of proven performance, Yamaha’s offshore 4.2L V6 has recorded 96 percent reliability.** This outstanding track record makes it an even smarter choice offshore.
Our 4.2-liter F300 is a reliable, offshore favorite—and it's only getting better. It now features a fresh, new cowling design (with stern light if rigged with Helm Master® EX), new integrated digital electric steering*, rerouted exhaust for enhance reverse thrust and is available in Yamaha gray or pearlescent white. It’s destined to be a top choice offshore for years to come.
| Engine Type | V6 |
|---|---|
| Displacement | 4.2L |
| Bore x Stroke | 96 x 96mm (3.78 x 3.78 in) |
| Prop Shaft Horsepower | 300hp at 5500 rpm |
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Alternator Output at W.O.T. | 50 – 70 Amp |
| Compression Ratio | 10.3:1 |
| Fuel Induction System | EFI |
| Weight † | 250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs) |
| Recommended Fuel | Octane 89 |
| Recommended Engine Oil | Yamalube® 4M (See owner’s manual) |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel / Water Separating Filter (external) |
Our 4.2-liter F250 is perfect for offshore dual or center consoles, walkarounds, runabouts and pontoons. It allows you to step up your horsepower and displacement without rerigging. Only now, it features a fresh, new cowling design (with stern light if rigged with Helm Master® EX), new integrated digital electric steering* and rerouted exhaust for enhanced reverse thrust. It just proves even the best can get even better.
| Engine Type | V6 |
|---|---|
| Displacement | 4.2L |
| Bore x Stroke | 96 x 96mm (3.78 x 3.78in) |
| Prop Shaft Horsepower | 250hp at 5500 rpm |
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Alternator Output at W.O.T. | 50 – 70 Amp |
| Compression Ratio | 10.3:1 |
| Fuel Induction System | EFI |
| Weight † | 250 kg (551 lbs) / 254 kg (562 lbs) / 265 kg (588 lbs) |
| Recommended Fuel | Octane 87 |
| Recommended Engine Oil | Yamalube® 4M (See owner’s manual) |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel / Water Separating Filter (external) |
Perfect for 20-foot decks or deep-Vs, the versatile 4.2-liter F225 allows you to increase your displacement without replacing your rigging.
| Engine Type | V6 |
|---|---|
| Displacement | 4.2L |
| Bore x Stroke | 96 x 96mm (3.78 x 3.78 in) |
| Prop Shaft Horsepower | 225hp at 5500 rpm |
| Full Throttle RPM Range | 5000 ~ 6000 rpm |
| Alternator Output at W.O.T. | 50 – 70 Amp |
| Compression Ratio | 10.3:1 |
| Fuel Induction System | EFI |
| Weight † | 250 kg (551 lbs) – 254 kg (562 lbs) |
| Recommended Fuel | Octane 87 |
| Recommended Engine Oil | Yamalube® 4M (See owner’s manual) |
| Recommended Fuel Filtration | Yamaha 10-Micron Fuel/Water Separating Filter (external) |
Bosun's Marine is your premier destination for Yamaha Outboard Engines. Discover the power, reliability, and innovation of Yamaha’s world-renowned marine engines right here. Whether you’re a seasoned boater or a newcomer to the water, our expert team is dedicated to helping you find the perfect Yamaha Outboard Engine to suit your needs.
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