Honda 250HP BF250DUDA White iST Outboard – 30″ Shaft
The white 250-horsepower Honda BF250DUDA iST outboard uses a 30-inch shaft for compatible high-transom boats. Electronic control supports responsive operation, while proper shaft matching helps maintain propeller depth and predictable handling during offshore cruising.
Description
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Honda 250HP BF250DUDA White iST Outboard Motor Specs
| Brand | Honda Marine |
| Full Model Code / Part Number | BF250DUDA (White / Standard Rotation / iST / 30" Shaft) |
| Country of Origin | Japan / USA |
| Engine Type & Configuration | 4-Stroke SOHC 60° V6 (24-Valve VTEC) |
| Horsepower Output (HP / kW) | 250 HP (184 kW) |
| Displacement (cc / cu in) | 3583 cc (219 cu in) |
| Bore x Stroke (mm / in) | 89.0 x 96.0 mm (3.50 x 3.78 in) |
| Maximum RPM Range (Full Throttle Operating Range) | 5300 - 6300 RPM |
| Fuel Induction System | Programmed Fuel Injection (PGM-FI) |
| Ignition System | Microcomputer Controlled Transistorized |
| Starting System | Electric Start with Intelligent Shift & Throttle (iST) |
| Steering System | Electronic Remote Control / iST Compatible |
| Trim & Tilt System | Power Trim & Tilt |
| Gear Ratio & Shift Mechanism | 2.00:1 (Standard Rotation / F-N-R) |
| Exhaust System | Through Prop Hub |
| Recommended Transom Shaft Length | XXL: 30 inches |
| Alternator / Charging Output (Amps / Watts) | 90 Amp (Total / 60 Amp Battery Charging) / 1080 Watts |
| Recommended Fuel Grade & Oil Type | Regular Unleaded (Min. 86 Octane) / Honda 4-Stroke FC-W 10W-30 |
| Dry Weight (kg / lbs) | 287 kg / 633 lbs |
| Standard Warranty | 5 Years Limited Pleasure Warranty |
Common Question of Honda BF250DUDA White
Is the white DUDA fuel injected?
Yes. The white Honda BF250DUDA uses an electronic fuel injection system and a 250-horsepower four-stroke powerhead. Its white finish identifies exterior appearance, while the listed configuration includes Intelligent Shift and Throttle and a 30-inch shaft. This provides a high performance outboard motor option for compatible tall-transom boats.
Does it use Intelligent Shift?
Yes. The DUDA White designation identifies an iST model with Intelligent Shift and Throttle. Confirm the control head, wiring harnesses, gauges, battery capacity, steering components, and installation hardware before purchase. Proper electronic integration supports smooth gear selection and throttle response from the helm of this ready to bolt marine outboard.
What transom fits its shaft?
A 30-inch transom is the intended match for this white DUDA model. Measure the hull according to the boat manufacturer’s instructions before mounting. Correct shaft positioning supports cooling-water pickup, gearcase clearance, propeller immersion, steering response, and trim performance. Accurate measurement is essential for final installation.











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