Honda 225HP BF225DUDA iST Outboard – 30″ Shaft
The 225-horsepower Honda BF225DUDA iST outboard uses a 30-inch shaft for compatible high-transom boats. Its electronic control system supports precise operation, while the shaft length helps maintain propeller depth and efficient thrust delivery.
Description
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Common Question of Honda BF225DUDA
Does BF225DUDA use iST?
Yes. The Honda BF225DUDA uses Intelligent Shift and Throttle for compatible electronic gear selection and throttle commands. Its 225-horsepower four-stroke powerhead uses an electronic fuel injection system, while the 30-inch shaft suits tall-transom boats. Properly equipped, it functions as a high performance outboard motor for helm-controlled operation.
What boats need a 30-inch shaft?
Boats with a matching 30-inch transom are the intended application for this UDA model. Measure the hull carefully before purchase and follow the boat manufacturer’s recommendation. Correct shaft depth supports cooling-water pickup, gearcase position, propeller immersion, steering response, and trim performance. Proper fitment is required for this ready to bolt marine outboard.
Does it require electronic controls?
Yes. The iST system requires compatible electronic controls, wiring harnesses, gauges, battery capacity, steering equipment, and correct rigging. Conventional mechanical cables may not provide the intended engine interface. Confirm complete system compatibility before purchase so the Honda 225-horsepower four-stroke powerhead delivers dependable shift and throttle response.











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