Honda BF225DXDA 225HP – iST 25″ Shaft Standard Rotation

Honda BF225DXDA 225HP V6 iST

The Honda BF225DXDA pairs a 3.6L V6 SOHC engine with standard rotation and iST digital control, at 622 lbs dry. The 25-inch extra-long shaft is built for primary engine installs on mid-to-large vessels, part of Mulmarine’s outboard propulsion systems lineup with world-class digital control.

Peak output runs at 6000 RPM, featuring VTEC for thermal efficiency and high-end speed. The 2.00:1 gear ratio gives a hydrodynamic advantage for reaching plane quickly and holding cruise stability in heavy swells. Engineered in Japan, the unit includes vibration dampening and corrosion-resistant components.

Technical Specifications of Honda BF225DXDA

• The 3.6L V6 SOHC architecture provides strong displacement for torque across all power bands.
• iST enables precise drive-by-wire control for effortless shifting and throttle synchronization.
• VTEC optimizes valve timing at high RPM for stronger power and thermal efficiency.
• Standard right-hand rotation gearcase gives efficient hydrodynamic thrust for primary offshore setups.
• The 90-Amp alternator delivers 60 Amps of charging power for critical marine electronics.
• Programmed Fuel Injection (PGM-FI) ensures precise combustion for reliable cold-start reliability.

V6 VTEC Architecture

This VTEC V6 gives strong fuel economy at low speed and immediate high-end power for offshore transit — a balance serious mariners demand.

Digital iST Control

The iST system removes mechanical cables for a seamless helm experience, allowing effortless docking and precision throttle adjustments in busy marinas.

25-Inch Extra-Long Shaft

The 25-inch shaft is built for standard offshore transoms needing deep propeller immersion, keeping performance consistent on mid-to-large fiberglass hulls.

NMEA Digital Integration

NMEA 2000 certification lets captains monitor fuel induction, RPM, and temperature data in real time.

Honda Factory Coverage

Honda Marine backs this unit with a 5-year limited warranty covering major components against manufacturing defects.

Offshore Hull Match

This iST V6 fits mid-sized offshore center consoles and walkaround vessels, delivering sustained thrust through heavy offshore swells.

Maintenance & Longevity

Regular inspection of the wet sump lubrication system keeps the 3.6L V6’s tolerances tight. Pro Tip from the Shop: inspect the iST digital harness connectors for salt residue every 50 hours.