Engine - Outboard, Mercury, 20HP, 15" Shaft, Manual Start, Manual Steer, Manual Trim (#20M4S)
Part #: 20M4S
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Mercury FourStrokes 20 HP
FourStrokes 20 HP Specifications |
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HP/Kw @ Prop | 20 / 14.7 | |
Full Throttle RPM | 5400 - 6100 | |
Cylinder Configuration | 2 (in-line) | |
Displacement (L / CID) | 21.4 / 351 | |
Bore and Stroke (in / mm) | 2.40 x 2.36 in 61 x 60 mm |
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Fuel Induction System | 2 valves per cylinder, single overhead cam (SOHC) | |
Ignition | CDI w/ electronic spark advance | |
Fuel System | Carbureted | |
Alternator Amp | 12 amp / 138 watt (Electric) | |
Cooling System | Water-cooled with thermostat | |
Starting | Manual | |
Gearcase Ratio | 2.15:1 | |
Gear Shift | F-N-R | |
Steering | Tiller | |
Trim System | Manual | |
Trim Positions | 6 | |
Exhaust System | Through prop | |
Shallow Water Drive | Yes | |
Shallow Water Trim Range (Degrees) | 16 | |
Recommended Oil | Mercury 4-Stroke Outboard Oil | |
Fuel Ethanol Tolerance | 87 octane/up to 10% ethanol | |
Remote Fuel Tank Standard (Gal / L) | 6.6 / 25 | |
Engine Protection Operator Warning System | Low oil pressure Over-rev |
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Shaft Length | 15 in (381 mm) | |
Dry Weight * Lightest Model Available | 115 lbs / 52.3 kg |