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Our 139-cc 6-hp portable is an impressive little outboard. It boasts surprising features for such a small motor, like labyrinth exhaust and a long span mounting system for smooth, quiet power. It also offers the convenience an external fuel tank (in addition to its built-in tank) for extended range and added convenience.
Have a question about the 2018 Yamaha Outboards 25 - 2.5 hp Portable F6?
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Specifications
Engine Specs
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Engine Type
:
1 cyl
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Displacement
:
139cc
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Bore x Stroke
:
62 x 46mm (2.44 x 1.81in)
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Prop Shaft Horsepower
:
6hp at 5000 rpm
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Compression Ratio
:
8.9:1
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RPM Range
:
4500 ~ 5500
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Fuel Induction System
:
Carb
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Alternator Output @ W.O.T.
:
6 Amp
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Recommended Engine Oil
:
Yamalube® 4M (See owner's manual)
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Recommended Fuel
:
Octane 87
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Weight
:
27 kg (59 lbs) - 28 kg (61 lbs)
Specifications are subject to change without notice
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Comfortable Control - Incredibly nimble, the F6 and F4 feature 180-degree steering and the F2.5 features 360-degree steering with a dynamically balanced and dampened twist-grip throttle for comfort and convenient maneuverability.
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Easy Storage - Yamaha's F2.5, F4, and F6 feature our Easy Storage Oil Retention System. This pressurized oiling system prevents leaks, enabling on-side storage.
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Lightweight, Portable Power - They may weigh as little as 37 pounds, but these Overhead-Valve portable outboards are packed with features that create smooth, quiet power. This includes a CDI or TCI ignition system, an optimally balanced crankshaft, a long span mounting system and a labyrinth exhaust.
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Portability and Storage - Built-in front and rear handles make these lightweights easy to carry. Resting pads and an easy oil retention system allow for convenient on-side storage without cowling scuffs or oil leakage.
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Record Setting Fuel Efficiency - Small motors use less fuel, but according to the Guinness Book of World Records, the Yamaha F4 actually set a world record for fuel efficiency, traveling 67.27 continuous statute miles on one gallon of gas.
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Ultra-Low Emissions - The Portable F6, F4 and F2.5 are California Air Resources Board (C.A.R.B.) Three-Star Rated for Ultra-Low Emissions and meet federal EPA requirements.
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Wet Sump - A pressurized oil delivery system that incorporates a compact and durable oil pump to keep all of the moving parts of their Overhead Valve systems lubricated and running smoothly for maximum reliability.
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