Honda 100 HP Steering Electric Start Power Trim Long Shaft Outboard Motor

The Honda BF 100 AK1 LRTU is a 4-stroke outboard marine engine designed for medium-sized fiberglass, aluminum, or inflatable boats, and 5–7 meter vessels requiring a long shaft. It features a 100 HP / 73.6 kW, 1496 cc, 4-cylinder SOHC VTEC PGM-FI engine. The BF 100 AK1 LRTU, with its 1496 cc 4-cylinder SOHC VTEC engine, offers a quiet, efficient, and reliable power source for medium-sized boat users.

BF 100 AK1 LRTU Engine Technology and Key Advantages

The SOHC VTEC system optimizes valve timing based on engine speed. This provides fuel economy at low RPMs and a wide power band at high RPMs. PGM-FI electronic injection ensures consistent power output and comfortable cold-weather starting.

• 4 Cylinder SOHC VTEC PGM-FI Engine (1496 cc, 4 Cylinder): The SOHC VTEC system optimizes valve timing based on engine speed
• Long Shaft (508 mm (20")): perfect fit for medium-sized fiberglass transoms — propeller operates at optimum depth
• F–N–R Gear System: Forward, neutral, and reverse — full control for maneuvering in tight spaces, at docks, and in marinas
• Electric Start: Instant activation with a key or button — comfortable and quick starting
• Electric Trim and Tilt: Adjust trim angle with a button — fuel efficiency and speed optimization during navigation; possibility to fully raise the engine with tilt
• 25 Liter Internal Tank: Sufficient capacity for medium-distance routes; option for external tank connection for longer voyages

Long Shaft — Which Boat Type Is It Suitable For?

The long shaft (508 mm (20")) is suitable for the vast majority of inflatable boats, aluminum fishing boats, and small fiberglass boat models. For boats with a transom height of 381 mm, a short shaft model should be preferred.

Technical Specifications

Who Is This Engine For?

• Primary engine for 5–7 meter medium-sized boats: efficient and quiet 4-cylinder power
• Fishing and coastal cruising: silent 4-stroke operation for undisturbed fishing
• Large inflatable boats and RIBs: balanced power and fuel economy
• Rental boats and watersports clubs: low maintenance cost suitable for intensive use

Maintenance and Longevity

4-stroke Honda engines provide years of trouble-free operation with regular oil changes and end-of-season maintenance protocols. The impeller of the water-cooled system should be checked every 100 hours or every two seasons. Freshwater flushing is mandatory after every use in saltwater.

Related maintenance categories: Maintenance Kit | Engine Oil | Impeller | Honda Marine Spare Parts

Frequently Asked Questions

Which boat size is the Honda 100 HP engine best suited for?

100 HP power is optimized for medium-sized boats ranging from 5–7 meters in length. The 4-cylinder structure offers significant advantages over single and twin-cylinder alternatives in terms of load-carrying capacity and open-sea conditions.

What difference does the SOHC VTEC system make in this power class?

VTEC optimizes valve timing according to engine speed. Fuel economy at low RPMs, performance at high RPMs — two advantages in one system.

What is the advantage of electric trim?

Electric trim allows you to adjust the engine angle with a button according to boat speed and load conditions. The correct trim angle can significantly reduce fuel consumption. The ability to make instantaneous adjustments while underway provides a great comfort difference compared to manual trim models.

Which boat and inflatable boat brands are compatible with the BF 100 AK1 LRTU?

Honda outboard motors are compatible with the vast majority of Zodiac, Ribeye, Highfield, Bombard, Sea Eagle, and domestic brand inflatable boats due to their universal transom clamp system. The only criteria are your boat's 508 mm (20") transom height and the maximum engine power approved by the manufacturer. You can confirm compatibility with Clever Marin by sharing your boat model.

Related Products and Categories

• Honda Marine Outboard Motors
• Honda Marine Products
• Honda Marine Spare Parts
• 4-Stroke 75–150 HP Engines
• Outboard Motors
• Boat Engines
• Maintenance Kit
• Impeller
• Engine Oil
• Anode

Is This the Right Configuration for Your Boat?

Share your boat model, transom height, and intended use — let's confirm together if the Honda BF 100 AK1 LRTU engine is suitable for your boat and ensure the correct shaft selection.