2019 Mercury 20 HP EFI 20MH Outboard Motor

Mercury's 2019 20MH EFI brings fuel injection to the short-shaft, manual-start side of the 20 HP tiller lineup, on a 15-inch shaft, at a 103-pound dry weight. EFI instead of a carburetor Electronic fuel injection on this 333cc powerhead is built to start and run more consistently across temperatures than Mercury's carbureted 20 HP models, while this manual-start version skips the starter motor and battery that electric-start 20 HP EFI models need. An optional 12-amp, 138-watt alternator can still be fitted for charging needs without moving up to full electric start. Fitment Transom height, not preference, decides whether this short-shaft 20 HP engine or Mercury's 20-inch long-shaft version belongs on your boat. This engine is rated for saltwater use, which matters for anyone running it in anything other than fresh water. Why EFI on a small tiller motor Fuel injection on an engine this size mostly shows up in how it behaves when cold or sitting unused for a stretch, starting and settling into an idle with less fussing than a carbureted engine of the same size typically needs, particularly once ethanol-blended fuel has had time to go slightly stale in the tank. Common questions What fuel system does it use? Electronic fuel injection on a 333cc powerhead. Is it electric or manual start? Manual pull-cord start, and the motor ships new under Mercury's standard three-year warranty. Specifications MODEL 1A20201BK MODEL YEAR 2019 SKU 20MH-19EFI WEIGHT 103.0 lb MANUFACTURER Mercury COUNTRY OF MANUFACTURE Japan HORSEPOWER 20hp SHAFT LENGTH 15″ (Short) STEERING Tiller STARTING Manual TRIM & TILT Manual FUEL DELIVERY EFI FUEL TANK External CYLINDER(S) 2 DISPLACEMENT 333 cc (20.3 cubic inches) BORE AND STROKE 61 mm x 57 mm (2.402 in. x 2.244 in.) FULL THROTTLE RPM RANGE 5400-6100 IGNITION SYSTEM CDI w/electronic spark advance INDUCTION SCAVENGING SOHC VALVES PER CYLINDER 2 FUEL TYPE 87 octane/up to 10% ethanol FUEL TANK / FUEL LINE 6.6 / 25 OIL TYPE Mercury 4-Stroke Outboard Oil OIL CAPACITY 1 Quart (1000 ml) LUBRICATION Trochoid Pump ALTERNATOR Optional 12 amp / 138 watt (Electric) COOLING SYSTEM Water-cooled with thermostat SALTWATER RATED Yes GEAR RATIO 2.15 GEAR SHIFT Forward-Neutral-Reverse PROPELLER 9.2″ Diameter X 9.1″ Pitch 3-Blade Aluminum