Honda BF350AUDA 350HP Outboard – 30in Shaft, iST, Drive-by-Wire, V8, Ultra Long
For charter work, Honda BF350AUDA answers with 350 horsepower. Ist drive-by-wire throttle runs through a 30-inch shaft. First-time buyers like the low learning curve at the helm. Common on offshore center consoles and sport boats.
- 350 horsepower on tap
- 30-inch shaft, standard fit
- iST drive-by-wire throttle control
- V8 engine, proven configuration
- Backed by standard marine warranty
Description
Pair Honda BF30D3LRT with a 20-inch-transom boat when remote mechanical control, full Power Trim and Tilt, and 30 HP are required together. Its 552 cc inline three-cylinder SOHC engine uses six valves and produces 30 HP at 6,000 RPM. Honda BF30D3LRT is a Signature Silver 4-stroke outboard with three carburetors, accelerator-pump fuel delivery, electric starting, remote steering, and a 20-inch long shaft. Power Trim and Tilt lets the operator change engine angle from the helm.
At 160 lbs dry, the motor should be included in transom, trailer, rigging, battery, and boat-balance calculations. Its 5,700–6,200 RPM full-throttle range gives a setup reference for propeller selection, while the 2.08:1 gear ratio supports standard forward, neutral, and reverse operation. The 10-amp alternator supplies electrical output for supported navigation equipment, lighting, pumps, and accessories. The listed 1.9 L oil capacity should be serviced according to the Honda owner’s manual.
Key Features of Honda BF30D3LRT
- Fit the 20-inch long shaft to compatible boats with standard long transoms.
- Power Trim & Tilt — adjusts engine position from compatible remote controls during operation.
- 30 HP at 6,000 RPM comes from a 552 cc inline three-cylinder SOHC engine.
- 160 lbs dry weight requires suitable transom capacity and repower balance planning.
- Remote Mechanical Control keeps throttle and shifting available at the helm.
- Three Carburetors with Accelerator Pumps manage fuel delivery within the supplied system.
- 61 x 63 mm bore and stroke define the listed engine dimensions.
- 10-amp alternator supports compatible marine accessories and onboard equipment.
Why Choose the Honda BF30D3LRT
This model is intended for boaters who want helm-based operation and full trim adjustment in a 30 HP package. The 20-inch shaft suits compatible long transoms, while Power Trim and Tilt allows engine-angle changes without leaving the helm.
- Remote controls suit dedicated helm operation
- Power trim supports running-angle adjustment
- 30 HP fits properly rated boats
Applications & Use Cases
Honda BF30D3LRT is suited to small pontoons, fiberglass boats, aluminum fishing boats, and recreational hulls using a 20-inch transom. It can support fishing, family cruising, harbor travel, and short boating trips when the vessel accepts the engine’s weight and horsepower.
- Small pontoons with long transoms
- Fiberglass boats using remote steering
- Fishing boats requiring Power Trim
Warranty, Support & Maintenance
The supplied product information lists a 5-year non-declining standard warranty. Follow the applicable Honda owner’s manual for the 1.9 L oil capacity, gearcase lubricant, filters, spark plugs, carburetor service, cooling-system checks, remote controls, and Power Trim & Tilt. Confirm service intervals, warranty registration, and dealer support before purchase.
Honda 350HP BF350AUDA iST Specs
| Brand | Honda Marine |
| Full Model Code | BF350AUDA |
| Country of Origin | Japan |
| Engine Family/Series | BF350 V8 (Silver/Gray) |
| Engine Type | V8 60° / 32-Valve DOHC / 4-Stroke |
| Displacement | 5.0 Liters (4952 cc) |
| Horsepower | 350 HP @ 5500 RPM |
| Full Throttle RPM Range | 5000 - 6000 RPM |
| Fuel Induction System | Programmed Fuel Injection (PGM-FI) / VTEC® |
| Alternator Output | 93 Amps (70 Charging Amps) |
| Gear Ratio | 1.79:1 |
| Shaft Length | 30" (U-Long) |
| Dry Weight | 355 kg (782 lbs) |
| Bore x Stroke | 89 x 100 mm |
| Starting & Steering System | Electric w/ iST (Intelligent Shift & Throttle) |
| Trim/Tilt Method | Power Trim & Tilt / Trim Support |
| Oil Capacity | 9.3L (with filter) |
| Recommended Fuel | 86 Octane (Unleaded) |
| Standard Warranty | 5-Year Non-Declining Limited |
| Application | Standard rotation unit for large offshore center consoles and cruisers (32' - 45'). |













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