
Honda BF115JLDA 115HP iST 20″ Outboard Motor
The Honda BF115JLDA links a 2.4L 16-valve DOHC powerhead with iST drive-by-wire controls, built for tournament bass hulls on a 20-inch shaft. It spins a 2.14:1 gearcase and charges at 55 Amps.
- 2.4L DOHC engine produces 115HP
- iST drive-by-wire ensures smooth electronic shifting
- 55A alternator charges heavy house batteries
- 2.14:1 gearcase maximizes propeller water thrust
- 20-inch shaft fits standard bass transoms
The Honda BF115JLDA is a 115hp standard rotation outboard designed with a 20-inch shaft for multi-engine offshore boats. This 2.4-liter inline-4 platform handles offshore high-seas operation by distributing its 2354 cc displacement over an optimized dry weight of 487 lbs to maximize rigidity. Crafted explicitly for shallow sterns, the 20-inch shaft length helps support complete propeller immersion and continuous bite across tournament bass platforms and sport pontoons navigating open ocean waters.
Sustaining high-speed cruising across offshore tournament distances is easy when running this heavy-duty powerhead within its 4500 to 6000 RPM threshold. The optimized 2.14:1 gear ratio translates internal combustion pressures into a sweeping torque curve to lift wide hulls on plane rapidly. Backed by proven Japanese engineering excellence, the propulsion platform provides mechanical consistency for captains operating far beyond standard coastal cell phone service ranges.
DOHC High Power Block
Advanced double overhead camshaft engineering treats the cylinder configurations of this 16-valve inline-4 to optimize overall thermal efficiency. This build path cuts unnecessary pounds from the powerhead block while drastically accelerating thermal dissipation under severe high-load operations.
BLAST Instant Torque Induction
Programmed electronic fuel injection pushes fuel straight into the intake ports while advanced spark timing improves holeshot performance on 86 octane fuel. This automated network produces crisp throttle recovery and instant starting capability when navigating treacherous inlets or heavy head seas.
Hydrodynamic Lower Gear Housing
Oversized drive gears housed inside a hydrodynamic lower unit minimize underwater drag profiles during high-speed cruising maneuvers. This robust engineering dampens heavy gear-shift vibration while maximizing directional tracking on deep-transom multi-engine fiberglass hull configurations.
Intelligent Drive By Wire
Digital electronic control networks integrate seamlessly with the iST platform to handle intensive drive-by-wire needs automatically. This setup safely coordinates with the charging loop to sustain modern multifunction displays and gyro stabilizers without battery drain.
Bass Boat Vessel Application
Bass boats, premium bay boats, multi-species fishing boats, and standard transom center consoles ranging from 18 to 24 feet provide the appropriate match. Its 20-inch shaft prevents propeller ventilation when ascending rollers in rough open-ocean swells.
Rapid Fluid Servicing Access Point
Unimpeded maintenance access is guaranteed by a multi-piece cowling array that detaches smoothly for immediate dipstick evaluation. Slick drainage pathways isolate waste fluids to allow for quick oil changes right at the marina slips.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.
Product Specifications
Honda BF115JLDA 115HP iST 20" Outboard Motor Specs
| Brand | Honda |
|---|---|
| Full Model Code | BF115JLDA |
| Country of Origin | Japan |
| Engine Family/Series | High Power Inline-4 (iST) |
| Engine Type | 4-Stroke DOHC Inline 4-Cylinder / 16 Valves |
| Displacement | 2.4 Liters / 2354 cc |
| Horsepower | 115 HP @ 5250 RPM / 84.6 kW |
| Full Throttle RPM Range | 4500 - 6000 RPM |
| Fuel Induction System | Programmed Electronic Fuel Injection (PGM-FI) with BLAST & Auto Trim Support |
| Alternator Output | 55 Amps Gross / 40 Amps Charging |
| Gear Ratio | 2.14:1 |
| Shaft Length | L (20") |
| Dry Weight | 221 kg / 487 lbs |
| Bore x Stroke | 87.0 mm x 99.0 mm |
| Starting & Steering System | Electric Start & Intelligent Shift & Throttle (iST) Drive-by-Wire |
| Trim/Tilt Method | Power Trim & Tilt (with Tilt Limit Setting) |
| Oil Capacity | 6.7 Liters (with filter) |
| Recommended Fuel | 86 Octane |
| Standard Warranty | 5 Years Limited |
| Application | Bass boats, premium bay boats, multi-species fishing boats, and standard transom center consoles (18-24 ft hulls) |
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