This is not just power, but refined performance with a knowing smile. Light enough to lift your spirits, strong enough to carry the whole crew, and smooth enough to keep your coffee in the cup. Yamaha’s advanced EFI system delivers easy, instant starts every time, while the intelligent engineering gives you the feel of a “big engine” without the weight of a large motor.
| Engine Type | SOHC |
| Cylinders | In-line 2 cylinders |
| Fuel System | Fuel injection |
| Displacement | 432 cm³ |
| Max Output | 18.4 kW |
| Bore X Stroke | 65.0 × 65.1 mm |
| Compression Ratio | 9.1 : 1 |
| Ignition Advance System | TCI |
| Alternator | 16 A |
| Weight | MH, WH, WHP: 1130 mm, WHT, WHD: 1129 mm |
| Width | 378 mm |
| Height | S: 1106 mm, L: 1233 mm, X: 1320 mm |
| Engine Transom Height | S: 424 mm, S (ET, WT, WHT): 429 mm, L: 551 mm, L (ET, WT, WHT, WHD): 553 mm, X: 640 mm |
| Max Propeller Shaft Output | 18.4 kW |
| Fuel Throttle Operating Range | 5000 – 6000 r/min |
| Idling Speed | 850 – 950 r/min |
| Gear Ratio | 2.08 (27/13) |
Strong enough to surprise you, yet light enough to carry with ease. This perfectly balanced design delivers the power of a larger engine without compromising on the fun of driving.
Form meets function in one piece. The sculpted cover is smart, robust, and unmistakably Yamaha, with a watertight fit that looks sleek and keeps the engine in top condition.
Start it like a car, trust it like a friend. With PrimeStart™, battery-less EFI, VTS speed control, and Y-COP security, you get both convenience and peace of mind.
Information meets intuition. Connect to Yamaha’s digital network system and get easy-to-access, real-time information on speed, efficiency, and performance, all delivered with smooth, stress-free control.
Because two hands are overrated anyway. The larger tiller handle puts the throttle, gear shift, and trim controls within easy reach, keeping everything exactly where it should be—right at your fingertips.
Close call? No problem. Glide right into shallow water without hesitation. This system protects the propeller, so you can find the best lunch spots or hidden picnic coves without nervously glancing at the fish finder.

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..