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Performance and Power in one convenient package.
Taking the fun with you is one of the great advantages of owning an inflatable boat or small fishing boat. Mercury offers a complete line of extremely light portable FourStroke outboards, with the widest range of models to choose from. So wherever you and your boat go, your Mercury portable FourStroke can also go. The entire line makes operation and portability easy with smart, simple features. Plus, clean, quiet, fuel-efficient FourStroke performance makes them the obvious power of choice.
Have a question about the 2012 Mercury FourStroke 20 HP?
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Specifications
Engine Specs
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Displacement (CID/cc)
:
21.4 / 351
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Cylinder/Configuration
:
2 (in-line)
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Bore & Stroke (in/mm)
:
2.40 x 2.36in / 61 x 60mm
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Fuel System
:
Carbureted
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Fuel Induction System
:
2 valves per cylinder, single overhead cam (SOHC)
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Cooling System
:
Water-cooled with thermostat
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Full Throttle RPM Range
:
5250-6250
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Ignition System
:
CDI w/electronic spark advance
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Starting
:
Electric, Manual
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Alternator Amp
:
12 amp / 138 watt
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Gear Shift
:
F-N-R
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Steering
:
Remote, Tiller
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Trim Positions
:
Ratcheting
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Trim System
:
Power Tilt
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Shallow Water Drive
:
Yes
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CARB Star Rating
:
3
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Remote Fuel Tank
:
6.6 gal / 25 L
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Exhaust System
:
Though prop
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Dry Weight * Lightest model available
:
115lbs / 52kg
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Engine Protection Operator Warning System
:
Low oil pressure, Over-rev
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Gearcase Ratio
:
2.15:1
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Recommended Fuel
:
87 octane/up to 10% ethanol
Specs
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HP/Kw @ Prop
:
20 / 14.7
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Shaft Length
:
15 in (381mm) / 20 in (508 mm)
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Recommended Oil
:
Mercury 4-Stroke Outboard Oil
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Shallow Water Trim Range
:
16 degrees
Specifications are subject to change without notice
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Fingertip Control: Mercury Fourstrokes are designed with a boat load of user-friendly features, such as our multifunction tiller handle. This tiller handle gives you easy one-handed operation of shifting, stopping, throttle, throttle friction, and tilt. More control equals better maneuverability.
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Large Displacement Design: At 21.4 cubic inches, this engine delivers the strong low-end torque needed to get the hull up on plane, with quicker throttle response and acceleration.
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Long-Lasting Gearcase: Mercury's 20hp FourStrokes have dual water pickups. So even if you end up in the shallows, your engine will keep its cool and not overheat.
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Wishbone Mounts: Mercury's "wishbone" style motor mount system cradles the powerhead and absorbs the torsional rotation of the crankshaft. By isolating and reducing the vibration transmission to your boat, it provides a smooth driving experience.
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