Yamaha VF250XB 250HP VMAX SHO High Performance 25″

The Yamaha LXF450ESA2 is a 450hp counter rotation outboard designed with a 35-inch ultra-long shaft for multi-engine offshore boats. Harnessing a 5.6L 5559cc V8 powerhead provides an torque curve capable of lifting heavily loaded transoms out of deep holes completely down the race course. At 1010 lbs of dry weight, this engine adds substantial ballast stabilization to the hull while maintaining structural balance across high-performance multi-outboard ocean configurations.

The 5000 to 6000 RPM operating range should be matched to the boat, load, propeller, and intended use. The robust 1.79:1 gear ratio translates pure rotational power into immediate thrust to drive large-diameter propellers efficiently through heavy rolling waves. Engineered with dependable Japanese manufacturing reliability, this marine power plant undergoes exhaustive field testing to handle punishing open-ocean conditions year after year without failure.

Advanced V8 Engine Architecture

The 5559cc V8 engine block configuration delivers thermal efficiency by optimizing combustion chamber heat dissipation during prolonged wide-open throttle offshore operation. This specific propulsion platform maintains exceptionally stable operating temperatures through internal water jackets under severe high-load pressure.

High Pressure Fuel Induction

Electronic fuel induction systems inject precise fuel volumes directly into each cylinder to is designed to support crisp throttle response and a superior hole-shot acceleration profile. This engineering approach reduces overall consumption rates across variable cruising velocities on extended tournament runs over open ocean water.

Counter Rotating Propulsion System

Counter-rotating gearcase mechanics eliminate steering torque entirely on multi-engine boats by rotating the propeller in a counter-clockwise direction against the starboard motor alignment. This strategic balancing technique improves directional tracking stability dramatically when piloting across treacherous crosscurrents.

Offshore Multi Engine Applications

Large offshore center consoles and deep-V fishing platforms utilize this ultra-long 35-inch shaft outboard to establish reliable tracking control in rough blue water environments. The heavy power delivery provides planing speeds for long multi-engine offshore trips.

Rigorous Gearcase Maintenance Guidelines

A standard 3-year limited pleasure warranty backs this flagship counter-rotating platform to helps support comprehensive multi-season operational coverage. Saltwater marine propulsion units require consistent inspections to protect internal seals from hidden fishing line damage.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.