Water-jet outboard engine F115

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Shallows. Rocky-bottom rivers. Shoals. White-water rapids. They’d all prove treacherous for a propeller-driven outboard, but Yamaha’s Jet Drive outboards are all about it. Available in 150, 115, 60 and 40 horsepower, you can “off-road” without the possibility of breaking a blade on rocks or other underwater obstructions. So, while you may be giving up the prop, you’re gaining a whole lot of freedom with a jet drive. Our 1.8-liter F115 Jet Drive outboard produces 80 hp at the pump. Its compact, lightweight DOHC design features 16 valves with four valves per cylinder and long tube intake tracks. This produces ample power for deck boats and deep-V hulls navigating shallow, rocky rivers. 377 pounds (including jet pump assembly) Precision Multi-Point Electronic Fuel Injection delivers the exact amount of fuel needed for optimum performance and efficiency. Yamaha’s EFI optimizes fuel atomization further enhancing fuel economy. Single or Double Overhead Camshaft platforms provide lighter weight, impressive acceleration and better fuel efficiency. Microcomputer Ignition adjusts timing to maintain optimum engine performance, economy and power under all conditions. The Composite Intake Manifold on Yamaha's Jet Drive F150, F115, F90, F60 and F40 feature long tube intake tracks, tuned to increase airflow. This boosts low-end and midrange torque for a more powerful hole shot and increased acceleration. Even with all this responsive power, an air silencer box and surge tank reduce air intake noise and air turbulence for smooth, quiet operation Microcomputer Ignition adjusts timing to maintain optimum engine performance, economy and power under all conditions