Honda BF140AK1XCRA 140HP – 25″ Shaft Counter Rotation Remote Mechanical

Honda BF140AK1XCRA 140HP 4-Stroke Counter Rotation

The Honda BF140AK1XCRA pairs a 2.4L DOHC inline 4-cylinder engine with counter-rotation gearing, built for high-transom vessels in Mulmarine’s marine propulsion systems lineup that need balanced steering torque. The 2.4-liter block gives a smoother, quieter ride while providing the mechanical strength needed to push heavy fiberglass hulls through unpredictable coastal sea states.

Honda’s Programmed Fuel Injection (PGM-FI) and VTEC technology deliver a strong hole-shot by optimizing valve timing across the 5000-6000 RPM range. The BF140AK1XCRA runs a 2.14:1 gear ratio and a 55-Amp alternator, suited to offshore vessels with high-draw electronics and multi-battery systems, with Lean Burn Control and a 5-year non-declining factory warranty.

Counter-Rotation Gearcase Mastery

Built for port-side installation in multi-engine setups, the left-hand rotation gearcase neutralizes steering torque, keeping large vessels tracking straight at high speed and reducing captain fatigue.

High-Displacement 2.4L DOHC Block

The 2.4-liter block gives higher torque and smoother power delivery than standard 140HP competitors with smaller displacements, reducing mechanical stress and vibration.

VTEC Variable Valve Technology

Honda’s VTEC provides a camshaft profile that optimizes valve lift and timing for both low-speed torque and high-speed performance.

Advanced BLAST Torque Technology

Honda’s BLAST technology advances ignition timing during rapid acceleration, cutting the hesitation common in four-stroke outboards for a strong hole-shot.

Programmed Fuel Injection (PGM-FI)

The multi-port PGM-FI system delivers the exact fuel and air ratio for current atmospheric conditions, giving turnkey cold starts and crisp throttle response.

Extra-Long 25-Inch Shaft Authority

Calibrated for high-transom vessel dimensions, the shaft ensures proper propeller immersion in heavy offshore swell, preventing aeration and cavitation during high-speed runs.

NMEA 2000 Digital Networking

This engine is NMEA 2000 certified, displaying fuel flow, RPM, and temperature directly on GPS or multi-function displays.