Honda BF225DK1UCDA 225HP iST 30″ Counter-Rotation

Description

The Honda BF225DK1UCDA pairs 225HP with a 30-inch ultra-long shaft, built with counter-rotation gearing for multi-engine offshore boats. The 3.6-liter V6 displaces 3583cc and weighs 631 lbs dry. Built for deep-V sterns, the 30-inch shaft keeps propeller depth and tracking balanced on large catamarans and sportfishing boats in open ocean waters.

Peak output holds within a 5300-6300 RPM range, sustaining cruising speed across long tournament distances. The 2.00:1 gear ratio converts combustion force into a flat torque curve, so heavy boats get on plane without burying the stern under load. Built on proven Japanese engineering, this platform is designed for mechanical consistency far beyond standard coastal ranges.

Technical Specifications of Honda BF225DK1UCDA

• Programmed fuel injection coordinates with lean burn control for optimized fuel delivery across the powerband.
• A 90-Amp gross alternator handles the electrical demands of modern multi-display helms.
• iST drive-by-wire mechanics remove cables to streamline rigging and responsive vessel tracking.
• Power Trim and Tilt makes trimming easy with a built-in automatic system for shallow waters.
• A 7.8-liter oil reservoir keeps components lubricated through long wide-open-throttle runs.
• The counter-rotation lower unit reverses propeller spin for balanced tracking on dual- or quad-engine setups.

SOHC VTEC Architecture

The 24-valve SOHC V6 block is engineered to keep the powerhead’s weight down while accelerating thermal dissipation under severe high-load offshore operations.

BLAST Instant Torque Induction

Programmed fuel injection pushes fuel into the intake ports while advanced spark timing improves hole-shot performance on 86-octane fuel, giving crisp throttle recovery and instant starting.

Hydrodynamic Lower Gear Housing

Oversized drive gears housed inside a hydrodynamic lower unit keep drag profiles down during high-speed cruising, dampening gear-shift vibration and maximizing directional tracking.

Lean Burn Electronics Loop

Lean burn control integrates directly with the fuel system to extend cruising range automatically, coordinating with the 90-Amp gross alternator to power critical electronics.

Fiberglass Boat Hull Integration

Offshore multi-engine center consoles, commercial catamarans, and heavy luxury pontoon platforms in the 24-32 ft range are a strong match. The 30-inch shaft prevents propeller ventilation climbing massive rollers.

Rapid Fluid Servicing Access Point

A multi-piece cowling detaches smoothly for quick dipstick checks, and drainage pathways isolate waste fluids for clean oil changes right at the marina slip. Pro Tip from the Shop: connect a freshwater wash hose directly to the upper flushing port after every trip to blast salt crystals out of the cooling jacket without starting the engine.