Honda 150HP BF150DK1XDA iST Outboard – 25″ Shaft
The 150-horsepower Honda BF150DK1XDA iST outboard uses a 25-inch shaft for compatible transoms. Its electronic iST control supports precise throttle and shift commands, while correct shaft matching helps maintain propeller position and predictable handling.
Description
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Honda 150HP BF150DK1XDA iST Outboard Motor Specs
| Brand | Honda Marine |
| Full Model Code / Part Number | BF150DK1XDA (Standard Rotation / iST / 25" Shaft) |
| Country of Origin | Japan / USA |
| Engine Type & Configuration | 4-Stroke DOHC 16-Valve Inline 4 (VTEC) |
| Horsepower Output (HP / kW) | 150 HP (110 kW) |
| Displacement (cc / cu in) | 2354 cc (144 cu in) |
| Bore x Stroke (mm / in) | 87.0 x 99.0 mm (3.43 x 3.90 in) |
| Maximum RPM Range (Full Throttle Operating Range) | 5000 - 6000 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 | 2.14:1 (Standard Rotation / F-N-R) |
| Exhaust System | Through Prop Hub |
| Recommended Transom Shaft Length | XL: 25 inches |
| Alternator / Charging Output (Amps / Watts) | 40 Amp (Total / 30 Amp Battery Charging) / 480 Watts |
| Recommended Fuel Grade & Oil Type | Regular Unleaded (Min. 86 Octane) / Honda 4-Stroke FC-W 10W-30 |
| Dry Weight (kg / lbs) | 220 kg / 485 lbs |
| Standard Warranty | 5 Years Limited Pleasure Warranty |
Common Question of Honda BF150DK1XDA
Does BF150DK1XDA use iST?
Yes. The BF150DK1XDA uses Intelligent Shift and Throttle for compatible electronic gear selection and throttle commands. This 150-horsepower Honda four-stroke has a 25-inch shaft and an electronic fuel injection system. Its configuration supports a high performance outboard motor installation when the boat has matching electronic controls and rigging.
Does it include electric start?
Yes. Electric start is listed for this BF150DK1XDA configuration, together with iST Intelligent Shift and Throttle. Confirm the boat’s battery capacity, wiring harness, gauges, control head, steering equipment, and rigging compatibility before installation. Correct system integration supports dependable starting, shifting, throttle response, and helm operation.
What transom fits its shaft?
A 25-inch transom is the intended match for this model. Measure the boat carefully and follow the hull manufacturer’s recommendation before purchase. Correct shaft selection supports cooling-water pickup, gearcase clearance, propeller immersion, steering control, and trim performance. Proper measurement is required for this ready to bolt marine installation.











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