Honda 115HP BF115JK1XDA iST Outboard – 25″ Shaft
Featuring 115 horsepower, iST control, and a 25-inch shaft, the Honda BF115JK1XDA supports compatible transom installations. Electronic operation assists responsive commands, while the shaft dimension promotes proper propeller alignment and predictable handling.
Description
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Honda 115HP BF115JK1XDA iST Outboard Motor Specs
| Brand | Honda Marine |
| Full Model Code / Part Number | BF115JK1XDA (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) | 115 HP (85 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 BF115JK1XDA
What does iST mean?
iST means Intelligent Shift and Throttle. The Honda BF115JK1XDA uses electronic commands for compatible shift and throttle operation, reducing dependence on conventional mechanical cables at the engine. Its 25-inch shaft suits tall-transom applications, while the 115-horsepower four-stroke powerhead delivers the capability expected from a high performance outboard motor.
Does this model use fuel injection?
Yes. The BF115JK1XDA uses an electronic fuel injection system to manage fuel delivery across starting, acceleration, and cruising conditions. Before installation, confirm compatibility among the engine harness, iST controls, gauges, battery, steering equipment, and boat wiring. Correct system integration is essential for dependable electronic shift and throttle operation.
What boats need its 25-inch shaft?
A 25-inch transom is the intended fit for this XDA configuration. Verify the boat’s transom height and the manufacturer’s mounting recommendation before ordering. Proper shaft selection positions the gearcase and cooling-water inlet correctly, helping preserve steering control, propeller immersion, engine cooling, and the performance of this ready to bolt marine outboard.
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