Honda 350HP BF350AXCDA White iST Outboard – 25″ Shaft
The white 350-horsepower Honda BF350AXCDA iST outboard uses a 25-inch shaft for compatible transom configurations. Electronic iST control supports responsive operation, while the engine’s output provides substantial propulsion for offshore cruising, fishing, and demanding utility applications.
Description
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Honda 350HP BF350AXCDA White iST Outboard Motor Specs
| Brand | Honda Marine |
| Full Model Code / Part Number | BF350AXCDA (White / Counter Rotation / iST / 25" Shaft) |
| Country of Origin | Japan / USA |
| Engine Type & Configuration | 4-Stroke SOHC 60° V8 (32-Valve VTEC) |
| Horsepower Output (HP / kW) | 350 HP (257 kW) |
| Displacement (cc / cu in) | 4952 cc (302 cu in) |
| Bore x Stroke (mm / in) | 89.0 x 99.0 mm (3.50 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 with Automatic Tilt Support |
| Gear Ratio & Shift Mechanism | 1.79:1 (Counter Rotation / F-N-R) |
| Exhaust System | Through Prop Hub |
| Recommended Transom Shaft Length | XL: 25 inches |
| Alternator / Charging Output (Amps / Watts) | 90 Amp (Total / Dedicated 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) | 340 kg / 750 lbs |
| Standard Warranty | 5 Years Limited Pleasure Warranty |
Common Question of Honda BF350AXCDA White
Is the white AXCDA an iST model?
Yes. The white Honda BF350AXCDA is specified with Intelligent Shift and Throttle and a 25-inch shaft. Its 350-horsepower four-stroke powerhead uses an electronic fuel injection system, supporting a high performance outboard motor installation when compatible electronic controls, harnesses, gauges, battery capacity, steering, and transom measurements are confirmed.
What transom fits its shaft?
A 25-inch transom is the intended match for this white AXCDA model. Measure the hull according to the boat manufacturer’s instructions before installation. Correct shaft positioning supports cooling-water pickup, gearcase clearance, propeller immersion, steering response, and trim performance. Accurate measurement supports this ready to bolt marine outboard installation.
Does it require electronic controls?
Yes. The iST system requires compatible electronic controls and rigging components rather than ordinary mechanical cables at the engine. Confirm the control head, wiring harness, gauges, battery capacity, steering equipment, and installation requirements before purchase. Complete system compatibility is essential for dependable shift and throttle operation.












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