From the moment it starts, the 175 hp SHO behaves more like a marine powerhouse than an outboard. The 16-valve DOHC engine is finely tuned with the precision of a racing engine and the refinement of a Yamaha four-stroke, giving you an adrenaline rush without the whining and roaring of smaller engines pushed too hard. Variable camshaft timing delivers instant response. EFI is refined for quick throttle response. And a power-to-weight ratio that makes the competition look like they’re carrying extra weight. This engine isn’t just for show. It makes a statement with purpose.
| Engine Type | 16-Valve, DOHC with VCT |
| Cylinders | In-line 4 cylinders |
| Fuel System | Fuel injection |
| Displacement | 2785 cm³ |
| Max Output | 128.7 kW |
| Bore X Stroke | 96.0 × 96.2 mm |
| Compression Ratio | 10.3 : 1 |
| Ignition Advance System | TCI |
| Alternator | 50 A (battery charging: 42 A) |
| Weight | 920 mm |
| Width | 548 mm |
| Height | L: 1742 mm, X: 1869 mm |
| Engine Transom Height | L: 516 mm, X: 643 mm |
| Max Propeller Shaft Output | 128.7 kW |
| Fuel Throttle Operating Range | 5000 – 6000 r/min |
| Idling Speed | 650 – 750 r/min |
| Steering | 31 deg. each direction |
| Gear Ratio | 1.86 (26/14) |
Smart timing, big benefits. VCT continuously adjusts valve timing to maximise torque at low and mid-range rpm while maintaining peak power—making acceleration feel responsive, cruising relaxed, and overtaking… inevitable.
That’s why a dead battery is never part of the plan. The dual-battery charging system intelligently separates the starting and accessory batteries, ensuring power flows where it’s needed and providing reliable starts—even when the playlist, chartplotter, and fridge are all running at full power.
Your outboard, on your terms. Yamaha’s immobilizer secures the engine at the touch of a button, providing discreet security without any hassle. Think of it as car-like convenience with the peace of mind you expect on the water.
A silent safeguard against costly mistakes. The tilt limiter prevents over-tilting and protects the cowling and transom from accidental contact. You may never notice it—and that’s exactly the point.
The cowling’s aggressive lines and bold graphics hint at the performance beneath the cover, making the engine part of the boat’s attitude rather than just machinery on the transom.
Slow down—precisely. With variable trolling control, you can fine-tune the engine speed in 50 rpm increments, making relaxed trolling effortless and controlled. Perfect for fishing days when patience pays off... eventually.

Enjoy unbeatable reliability and performance with Yamaha’s 5-year warranty, exclusive to Europe. The warranty applies to recreational-use outboard motors from 2.5 hp up to XTO models and includes comprehensive parts and labour coverage. Keep your engine in top condition with Genuine Parts and Yamalube oil from authorised dealers, and enjoy worry-free adventures with Yamaha’s renowned quality.
Nordwall Marin finns på det anrika Bosövarvet på Lidingö. Vi har byggt, sålt, reparerat och servat både båtar och motorer ända sedan 1946. På varvet finns det även en tillbehörsbutik och vi har sommarplatser att hyra ut vid våra bryggor..