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Description
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Four-stroke technology and Mercury. Always moving forward. With boater-driven innovations and technologies. Like electronic fuel injection. On-board digital monitoring that protects your engine. And a total commitment to corrosion protection utilizing hard-coat anodizing and a superior multi-step paint process. Mercury FourStroke engines have consistently set the bar for clean, quiet performance and low fuel consumption. Plus, no one has more models to fit your needs. |
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Lightweight & Fuel Efficient
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 Mercury’s world-renowned engineering team has packed incredible power into these lighter, compact four-cylinder single-overhead-cam engines. The 115hp weighs 20 pounds less than its closest four-stroke competitor, making it the world’s lightest low-emissions outboard in its power range. |
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Counter-Rotation.
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 Do you like to boat offshore even though you’re not in the market for a big boat? For the first time, Mercury is offering a 115hp FourStroke with left-hand rotation. Two of these mid-range monsters on your transom provide the maneuverability and get-home safety of higher-horsepower twins at a price that’s easier on your wallet. Unlike competitive dual 115hp engines, dual 115 Mercury FourStrokes are Command Thrust models, which swing V6-class propellers, such as Enertia series to deliver improved acceleration and better boat control in rough water. |
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Bigger Footprint.
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 The larger Command Thrust gearcase creates a bigger footprint in the water, which provides more leverage to control your boat. The larger torpedo, combined with a bigger-diameter prop, can lift a heavy boat onto plane more easily and hold it there at lower speeds without impacting top speed. |
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Worry-free
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Quieter Than the Competition.
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The Mercury 115 FourStroke is quieter than the Yamaha F115B across the rpm band.
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At idle, the Mercury is four decibels quieter than the Yamaha – the Yamaha is 25% louder.
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At cruising speed, where normal conversations occur, the Yamaha generates almost 15% more noise.
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At wide-open-throttle, the Mercury is more than eight decibels quieter – the Yamaha is 50% louder.
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Smoother Than the Competition.
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The Mercury 115 FourStroke has less vibration and rides smoother than the Yamaha F115B.
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At forward idle, the Mercury’s vibration level at the driver’s seat is up to 50% lower than the Yamaha.
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On the transom, the Yamaha puts out nearly five times more vibration than the Mercury – both at cruise and at full throttle.
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Propped to perform
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 The Mercury Enertia® propeller is the perfect complement to the 75 - 115hp FourStroke Command
Thrust gearcases. Designed specifically for large fourstroke outboards with a revolutionary low-diameter / high-blade-area design and cast with the Mercury proprietary X7® propeller alloy, Enertia delivers phenomenal acceleration, top speed and durability. |
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Powerful & Efficient
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Less weight and high displacement mean Mercury’s new 75 - 115 FourStrokes generate abundant torque and immediate power. Because they don’t have to work as hard as heavier engines or those with lower displacement, these engines make boats plane faster, accelerate better and provide optimal fuel efficiency at cruising speed. |
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