The all-new 1.8-liter I-4 F90 features greater displacement and a single-overhead-camshaft design with four valves per cylinder. This boosts power and volumetric efficiency and streamlines design. In fact, it’s 13 pounds lighter than previous designs. A lighter, more powerful design gives the F90 blistering speed that’s 1.5 mph faster than competing outboards.*
Features may include:
Available for mechanical remote or tiller control
Only 353 pounds
Available in 20” or 25” shafts
Powerful 35-amp alternator
Photos
Highlights
Clackamas, Oregon
New
2025
Yamaha Marine
Midrange 90 HP
Yamaha
90
Single Outboard
Gas
Available
Specifications
2025
Yamaha Marine
Midrange 90 HP
Base
Four Stroke
Inline 4
Prop Shaft: 90hp @ 5500 rpm
1.8L
3.19 in (81 mm)
3.5 in (88.9 mm)
10.0:1
Full RPM Range: 5000 ~ 6000 rpm
Mechanical Remote/Tiller | Angle (maximum): 35° from center, either direction