Tampa bay. Lake Superior. The St. Johns River. Wherever you watch the sun rise you’re likely to find a Yamaha In-Line Four. They’re perfect for all kinds of water—and boaters. For more than a decade Yamaha In-Line Fours have been the go-to for boaters who need light, nimble, compact power. The F200 and F150 are available in mechanical, digital with integrated steering, and now Power-Assisted Tiller models. Their proven reliability, unparalleled performance, and versatile technology make them perfect for a broad range of boat styles, hulls, and applications. It’s no wonder that year after year, Yamaha’s In-Line Fours increase in popularity.
The In-Line Four 150 is one that started it all and it’s more popular than ever. Powerful, light, and compact, it’s mechanical or digital compatible and uses integrated steering, making it more streamlined and responsive than ever before.
Features may include:
Comes with integrated electro-hydraulic steering for digital models and integrated hydraulic steering for mechanical models
Only 509 pounds (20” shaft DEC model)
Available in 20” or 25” shafts
Powerful 50-amp alternator (2.8-liter digital) or 35-amp alternator (2.7-liter mechanical)
Digital F150 available in signature Yamaha gray, pearlescent white, and classic white
Mechanical F150 available in signature Yamaha gray
Photos
Highlights
Boise, Idaho
New
009339
2025
Yamaha Marine
In-Line 4 150 HP
6MA-X-1009339
YAMAHA F150XC
150
Single Outboard
Gas
Available
Specifications
2025
Yamaha Marine
In-Line 4 150 HP
Base
Four Stroke
Inline 4
150hp @ 5500 rpm
System: Electric
Mechanical: 2.7L / DEC: 2.8L
3.70 in (94 mm) / 3.78 in (96 mm)
3.79 in (96.2 mm) / 3.79 in (96.2 mm)
9.0:1 / 10.3:1
Full RPM Range: 5000 ~ 6000 rpm
Angle (maximum): 30° from center, either direction