Honda BF350AUDA Outboard - 30" Shaft Remote Control Electric Start Power Tilt Silver. Overview. The Honda BF350AUDA is designed for large offshore boats with extra-tall transoms that require a full 30" shaft for proper prop immersion and high-speed stability. This configuration is commonly used on big center consoles and offshore fishing platforms where shorter shafts may ventilate in following seas or heavy chop.. Remote steering, electric start, and power tilt provide full helm integration and precise control. Power tilt allows quick trim adjustments to manage changing sea states, dial in ride attitude at speed, or raise the engine for trailering and shallow approaches.. Despite its size, the BF350AUDA retains Honda's refined four-stroke character. Throttle response is smooth, vibration is well controlled, and cruising remains composed, even during long offshore runs. It's a purpose-built option for single-engine offshore installations that demand maximum shaft length and confident p