2017 Tohatsu 20 HP MFS20DEFL Outboard Motor

The 2017 Tohatsu MFS20DEFL is a 20 hp four-stroke with a 20-inch long shaft, tiller steering, and electric start. Tohatsu aims it at mid-size to larger aluminum fishing hulls, skiffs, and inflatable boats, along with the heavier end of sailboats that need a dependable kicker or primary motor. A carbureted twin-cylinder, 351cc engine and a forward-mounted shift lever keep every control at the tiller. Long shaft, electric start The 20-inch long shaft suits a standard-height transom; pairing the wrong shaft length to a transom is the most common fitment mistake on a tiller motor like this one. Electric start draws on the engine's own 145-watt alternator rather than a separate charging source, and the top end runs 5,400 up through 6,100 rpm. Fuel and what ships in the box An external tank holding 3.1 gallons feeds the carburetor through a quick-connect line, and the crate also holds an aluminum propeller plus a printed manual packed with a separate parts kit. The engine carries a saltwater rating, and bore, stroke, and gear ratio appear in the spec table on this page. Q: Does it need a separate battery charging source? No, the standard alternator handles that on this electric-start version, so a single battery covers both starting and any house loads you wire into it. Tohatsu backs the MFS20DEFL with a 5-year warranty. Specifications Model MFS20DEFL Model Year 2017 SKU MFS20DEFL-17 Weight 124.0000 Manufacturer Tohatsu Country of Manufacture Japan Horsepower 20hp Shaft Length 20″ (Long) Steering Tiller Starting Electric Trim & Tilt Manual Fuel Delivery Carburetor Fuel Tank External Cylinder(s) 2 Displacement 351 cc (21.41 cubic inches) Bore and Stroke 61 x 60 mm (2.40 x 2.36 inches) Full Throttle RPM Range 5,400-6,100 RPM Ignition System Digital CD Ignition Induction Scavenging SOHC Valves per Cylinder 2 Fuel Type Unleaded Gasoline (87 octane) Fuel Tank / Fuel Line 3.1 Gal. Fuel Tank + Quick Connect Fuel Line Oil Type SAE 10W-30 or SAE 10W-40 (SF, SG, SH, SJ) Oil Capacity 1 Quart (1000 ml) Lubrication Wet Sump Alternator 12V 145W 12A (standard on elec. start models) Cooling System Water-Cooled, Thermostatically Controlled Saltwater Rated Yes Gear Ratio 2.15:1 Gear Shift Forward-Neutral-Reverse (front mount shifter) Propeller 9.2″ Dia. X 9.1″ Pitch 3-Blade Aluminum Internal Battery No