Tohatsu 20HP Outboard | MFS20EEFS

The Tohatsu MFS20EEFS is a 20 hp four-stroke with tiller steering and a single electric starter on a 15-inch shaft, weighing 104 lbs, built to run on standard unleaded fuel or fuel blended with up to 10% ethanol.

What's inside the block

The engine uses a steel crankcase with aluminum alloy pistons and cylinders, a pairing chosen for strength without piling on weight. Running it on pump fuel blended up to 10% ethanol keeps it compatible with most marina and roadside fuel sources without special blending.

Shaft and starting

A 15-inch shaft is the short option in this configuration, suited to boats with a lower transom such as inflatables and smaller craft; measure the transom before ordering this motor. Tiller control keeps throttle and steering at the motor, and the electric starter turns the engine over with a key rather than a cord.

What ships with it

The crate holds the propeller, an external fuel tank sized at 3.1 gallons, a hose for it, the charging system, a tool kit, a kill-switch lanyard, and the owner's manual. The two-cylinder, 333cc EFI block pulls the throttle up toward 6,100 rpm, under a 5-year Tohatsu warranty.

Q: Is a separate fuel tank needed? No, a 3.1-gallon tank and its hose ship with this motor already, ready to fill and run.

Q: What's the engine's full-throttle range? 5,400 to 6,100 rpm, from the two-cylinder, 333cc EFI block under the cowling.