Years of collaboration with top boat designers, and has been built from the ground up to provide the ultimate in power and efficiency offshore. With impressive stats such as the highest compression ratio on the water, industry firsts such as an electric steering system, and engineering touches such as iridium spark plugs and quad thermostats, it’s purpose-built for extreme power, durability, control and reliability.

 


Available in signature Yamaha gray or new pearlescent white


425 hp on less-expensive 89-octane gasoline


Available with Helm Master® with SetPoint


Impressive 5-year Limited Warranty, for pleasure use

 

 

SPECIFICATIONS



Engine Type


V8 / DOHC / 32 valves / 4 Valves per Cylinder



Displacement


5.6L



Bore x Stroke

96
x 96 mm (3.78 x 3.78 in)



Prop Shaft Horsepower


425hp at 5500 RPM



Full Throttle RPM Range


5000 – 6000 RPM



Alternator Output at W.O.T.

90
Amp Gross, Max



Compression Ratio


12.2:1



Fuel Induction System


Direct Injection / Up to 2900 PSI



Weight*


432 kg (952 lbs) / 443 kg (977 lbs) / 453 kg (999 lbs)



Recommended Fuel


Octane 89



Recommended Engine Oil


Yamalube
® 4M



Recommended Fuel Filtration


Yamaha 10-Micron Fuel / Water Separating Filter (external)