Honda 250HP BF250DUCDA White iST Outboard – 30″ Shaft
The white 250-horsepower Honda BF250DUCDA iST outboard uses a 30-inch shaft for compatible transoms. Its iST controls support responsive throttle and shift commands, while the shaft length helps maintain propeller position and efficient thrust transfer.
Description
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Honda 250HP BF250DUCDA White iST Outboard Motor Specs
| Brand | Honda Marine |
| Full Model Code / Part Number | BF250DUCDA (White / Counter 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 (Counter 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 BF250DUCDA White
Is the white UCDA an iST model?
Yes. The white Honda BF250DUCDA retains the iST Intelligent Shift and Throttle configuration and a 30-inch shaft. Its 250-horsepower four-stroke powerhead uses an electronic fuel injection system. The white finish identifies exterior appearance, while compatible rigging is required for this high performance outboard motor installation.
What transom fits its shaft?
A 30-inch transom is the intended match for this white UCDA 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. Proper measurements support this ready to bolt marine outboard.
Does it include Intelligent Shift?
Yes. The UCDA White designation identifies Intelligent Shift and Throttle, which electronically manages compatible gear selection and throttle commands. Confirm the control head, wiring harnesses, gauges, battery capacity, steering components, and installation requirements before purchase. Proper system integration is essential for smooth and dependable helm operation.
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