Honda 100HP | BF100A1XRT

This new Honda BF100A1XRT runs the same 100-hp, four-cylinder four-stroke engine as Honda's shorter-shaft model, built here on a 25-inch leg for boats with a taller transom.

Engine specifics

Displacement is 1496cc, this engine tops out at 5,300-6,300 rpm, and electronic fuel injection delivers the fuel; Honda recommends 91 octane for this engine. At 365 lbs on the scale, this unit carries a bit more heft than the shorter-leg version of the same block.

Rigging and inclusions

Power trim and tilt and a freshwater flush setup both come standard, alongside a charging system and the printed owner's manual, with Honda's 5-year warranty covering the whole engine. A propeller is sold on its own rather than bundled in with the motor.

Measuring for a long shaft

Get your transom height right before ordering, since mounting any outboard at the wrong depth hurts both handling and how well it cools over a long day on the water.

Who picks the long-shaft version

Boats that call for a 25-inch shaft usually sit their transom higher to begin with, which often points to a larger hull where this four-cylinder four-stroke brings efficient, smooth-running power without stepping up to a heavier six-cylinder engine.

What's the shaft length? 25 inches.

Does it include a propeller? No, a prop is not bundled with this engine.