Yamaha's newest outboard is also the most powerful outboard that it has ever offered. The experts at Boating put the 425-hp Yamaha XTO Offshore through its ... Yamaha claims the XTO produces 150 ...

Contender 24S Twin 150 HP Yamaha I-4 Outboards Certified Test Results Boating Magazine How We Tested. Twin Engines: Twin 150 hp Yamaha I-4 outboards; Drive/Props: Outboard/13.75″x 19″ Reliance 3-blade ...

So Yamaha built an engine designed for 50-plus foot boats, the 425 horsepower XTO Offshore. A 5.6-liter V8 with direct fuel injection, the XTO is a big fella—with its integrated power steering ...

Yamaha has a variety of outboard engines ranging from as little as 2.5 hp up to a V8 450 hp motor. ... 30-115 hp, 150-350 hp, and XTO Offshore.

From small, 2.5-horsepower outboards for fishing boats and general recreation, to 400-horsepower V8 giants that produce eye-watering speeds, Yamaha has many engines in its lineup.

The motor — a Yamaha 150 horsepower outboard — will allow ELC to give pontoon boat tours multiple times a day on the Indian River Lagoon, said spokesperson Janie Hoover.