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POWER + Versatility + Reliability

FOR THOSE WHO KNOW A GOOD TIME—WHEN THEY DRIVE IT.

You’re here to wake up the water. Count on Yamaha’s reliable Inline four strokes to power the fun. Our inline four-cylinder designs and electronic fuel injection make these babies strong, nimble, compact and light weight. In other words, they’re up for anything, making them the perfect power for cruising, skiing and sport fishing on flats, decks and offshore boats, and pontoons or deep-V hulls.

In-Line Four Models:f150 | f115

See Yamaha’s versatile In-Line Four outboards in action.

Here are just a few of the reasons why these versatile dynamos have been Yamaha’s bestseller, several years running:  

Amazing Acceleration
A 10mm offset crankshaft helps provides greater intake volume, and four tuned intake tracks increase low-and mid-range torque, boosting acceleration.

Power/Reliability
A 16-valve Double Overhead Cam maximizes power by using four valves per cylinder, eliminating rocker arms and their adjustments and increasing air supply and volumetric efficiency for better performance.

Exceptional Performance
Electronic fuel injection is controlled by the Engine Control Module. It continually adjusts the fuel/air mix to properly match engine load and speed.

Minimized Vibration
Twin counter balancer shafts on the F150 minimize engine vibration for a smooth, pleasant boating experience.

Take a look at the incredible engineering inside Yamaha’s In-Line Four outboards.

“In the charter business, I can’t afford downtime. My Yamaha F150 four stroke is the most dependable, trouble-free outboard I’ve ever run.”

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