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XTO Offshore V8 5.6L 425 HP


Maximizes power and efficiency by spraying fuel at high pressure directly into the combustion chamber. It’s the first four-stroke powerhead in the outboard industry to feature direct injection.

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Electric Steering

The XTO responds quicker to steering inputs because it contains the industry’s first electric steering motor, which directly sends signals form the helm to the integral electric steering control unit.

Helm Master® EX

Make the most of every minute on the water with the incredible control of Helm Master EX. Helm Master EX is built on the success of our groundbreaking, original Helm Master boat control system. It expands upon the functionality, flexibility and compatibility of our original Helm Master system, for an exciting next generation of control.

CL7 Touchscreen Display

Yamaha’s CL7 7-inch touchscreen display is our most streamlined instrumentation and is compatible with the new V8 XTO Offshore. The CL7 allows you to monitor vital boat functions and the performance of up to four outboards through one gauge. You can also access Helm Master and its upgraded SetPoint suite of precision boat control functions, and have the option built-in freshwater and saltwater maps.

Engine TypeV8 / DOHC / 32 valves / 4 Valves per Cylinder
Bore x Stroke96 x 96 mm (3.78 x 3.78 in)
Prop Shaft Horsepower425hp at 5500 RPM
Full Throttle RPM Range5000 - 6000 RPM
Alternator Output at W.O.T.100 Amp Gross, Max
Compression Ratio12.2:1
Fuel Induction SystemDirect Injection / Up to 2900 PSI
Weight 432 kg (952 lbs) / 443 kg (977 lbs) / 453 kg (999 lbs)
Recommended FuelOctane 89
Recommended Engine OilYamalube® 4M (See owner's manual)
Recommended Fuel FiltrationYamaha 10-Micron Fuel / Water Separating Filter (external)

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