This engine has the power and agility to make every trip memorable—from early-morning fishing trips to action-packed weekend adventures with your ever-present watersports enthusiasts speeding across the bay. The lightest and most powerful four-stroke engine in its class, with plenty of power to make towing effortless and every ride enjoyable.
| Engine Type | SOHC L4 16 valves |
| Fuel System | Fuel injection |
| Displacement | 996 cm³ |
| Max Output | 51.5 kW |
| Bore X Stroke | 65.0 × 75.0 mm |
| Compression Ratio | 9.4 : 1 |
| Ignition Advance System | TCI |
| Alternator | 15 A (battery charging: 9 A) |
| Weight | 713 mm |
| Width | 386 mm |
| Height | L: 1484 mm, X: 1598 mm |
| Engine Transom Height | L: 534 mm, X: 648 mm |
| Max Propeller Shaft Output | 51.5 kW |
| Fuel Throttle Operating Range | 5300 – 6300 r/min |
| Idling Speed | 700 – 800 r/min |
| Gear Ratio | 2.33 (28/12) |
Built-In Responsiveness. The SOHC 16-valve design delivers sharp acceleration and smooth mid-range performance, making it feel as though the boat has suddenly learned how to behave.
A Flying Start Without Hesitation. The higher gear ratio transforms low-speed power into real thrust, perfect for quick starts, loaded boats, and getting to the best mooring spot before your friend.
Link your engine to Yamaha’s digital network and unlock detailed information on rpm, fuel flow, trim, hours, and much more. Get clear feedback to drive harder, ride smarter, and save fuel.
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.
Strong, quiet, and seriously stylish. The low-profile cowling reduces noise and clutter, keeps everything neatly enclosed, and gives your transom a sleek finish for long lunches at the marina.
Multi-point EFI delivers the right amount of fuel to each cylinder at exactly the right time, improving cold starts, providing better throttle response, and helping make every drop of fuel go further.

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..