Yamaha 115hp Jet Outboard F115JB

The Yamaha 115hp Jet Outboard F115JB opens up waterways that traditional propeller-driven outboards simply can’t reach. Designed with a jet lower unit instead of a prop, this outboard allows boaters to navigate shallow rivers, rocky bottoms, and fast-moving water with confidence.

Powered by a 1.8-liter DOHC four-cylinder engine with Electronic Fuel Injection, the F115JB delivers smooth, efficient power while producing 80hp at the pump—ideal for deck boats and deep-V hulls operating in challenging environments.

Features and Performance

• Jet Drive System – Prop-free design enables safe operation in shallow and debris-filled waters

• 1.8L DOHC Four-Stroke Engine – Delivers strong torque and smooth acceleration with efficient fuel use

• Electronic Fuel Injection (EFI) – Reliable starts, optimized fuel delivery, and reduced emissions

• Exceptional Maneuverability – No gearcase below the hull for improved handling and obstacle avoidance

• Freshwater Flush Device – Flush the engine without starting it for easier maintenance and longer engine life

• Phaze Five™ Anti-Corrosion Protection – Five-layer paint system with YDC-30 alloy for superior durability

• Power Trim & Tilt – Enhanced control in varying water depths and loading conditions

Why You Should Buy It

If your boating takes you into shallow rivers, rocky channels, or areas where props are at risk, the Yamaha F115JB is the ideal solution. It trades a propeller for freedom—giving you access to waters others can’t reach, without sacrificing Yamaha reliability, fuel efficiency, or performance.

FAQ – Yamaha 115hp Jet Outboard F115JB

Q: Why does the F115JB produce 80hp instead of 115hp?
Jet outboards are rated differently. While the powerhead is based on a 115hp engine, jet drive output is approximately 80hp at the pump.

Q: Is this engine suitable for shallow rivers?
Yes. The jet drive design allows operation in shallow and rocky waters where propellers are easily damaged.

Q: Can the engine be flushed without running it?
Yes. The built-in freshwater flush system allows easy flushing without starting the engine.

Q: What boats are best suited for this outboard?
It is ideal for deck boats, river boats, and deep-V hulls operating in shallow or fast-moving water.