Tohatsu 20HP 4-stroke

Boasting the honor of the lightest weight outboard in its class, Tohatsu’s newly designed MFS 20hp Electronic Fuel Injection (EFI) is a great choice for a wide variety of boaters. Just because it is lighter in weight than our previous 20hp four stroke, doesn’t mean this model won’t deliver the same level of performance. This 20hp battery-less electronic fuel injection four stroke has exceptional torque and top end speed, with low vibration. We chose to build an EFI outboard because it has easy startup with no choke required and smooth, crisp acceleration throughout all RPM ranges. Another added benefit of an EFI versus our previous carbureted outboard is the fuel efficiency at wide open throttle, which allows you to go up to 50% farther on less fuel.

Also available on many models is the Power Tilt feature. The 20 hp Power Tilt is ideal for inflatable, fishing, and pontoon boats. The uniquely designed engine improves functionality and convenience with its light power tilt and transom bracket. Now you can tilt your motor out of the water with just a push of a button. Simplify your boating experience with a power tilt model. Try our new 20hp EFI for the ultimate boating experience because you don’t deserve anything less.

Tohatsu 20 hp 4-Stroke Benefits:

  • Battery-less Electronic Fuel Injection (EFI) operation
  • Light and compact
  • Advanced EFI for smooth operation, easier starting and increased fuel efficiency“Light Weight ECO Sport” development and design concept
  • Simpliq™ Technology - the result of continuous technological innovation fueled by the pursuit of nothing less than the very best
  • Designed with innovative technology
  • Available in a wide variety of models
  • Canister style oil filter for easy replacement
  • A high quality, user-friendly fuel water separator
  • Greatly reduced vibration for a smoother and quieter ride
  • Ultra Low emission, EPA and CARB 3-Star rating approved
  • 5 Year limited warranty

High Performance and Easy Operation:

  • Digital Electronic Control Unit (ECU) for immediate engine starting in all conditions, quicker throttle response and smoother trolling
  • Battery-less EFI with recoil starter on all models
  • Outboard is easier to lift and tilt into shallow drive because we’ve moved heavy components forward
  • Large alternator and rectifier for superior battery charging*
  • Multi-Function Tiller Handle: Stop Switch, Front Shift, Friction Adjusting Screw and Power Tilt Switch (PTS: on power tilt models only) integrated into the tiller handle for convenience
  • Remote control model available
  • Shallow water drive*
  • 90 degree turning radius
  • Adjustable steering friction for reducing steering effort*

Fundamentals for User Convenience and Reliability:

  • Through-the-prop exhaust for a quieter ride
  • Thermostatically controlled cooling system for consistent engine temperature
  • Stainless steel water pump housing liner for outstanding durability •
  • High grade marine aluminum alloy that provides the ultimate protection against corrosion
  • Zinc coating on internal water passages for superior corrosion resistance
  • 3.1 Gallon (12 liter) fuel tank includes fuel fittings and fuel line with fuel gauge on the cap
  • Aluminum propeller


  • Low oil pressure warning (visual and audible**)
  • Safety lanyard (an essential protection feature standard on all Tohatsu outboards)
  • Start-in-gear protection for safer engine starting
  • Over-rev. limiter

Model / MFS20 EFI

Engine (No. of Cylinder) 2
Output 20 hp (14.7 kw)
Displacement 333 cc (20.32
Bore x Stroke 61 x 57 mm (2.4 x 2.24 in)
Starting Electric & Manual or Manual
Control Type Remote Control or Tiller Handle
Gear Shift Forward - Neutral - Reverse
Gear Ratio 2.15:1
Propeller Selection Range 6" - 10"
Transom Height 15", 20"
Fuel Unleaded Gasoline (87 Octane)
Oil Type NMMA Certified FC-W® 4-stroke oil**
SAE 10W-30/40 (SF, SG, SH, SJ)
Oil Capacity 1.07 qt. (1 L)
Fuel Tank 3.1 US Gal. (12 Lit) Separate Fuel Tank
Weight* 94.7 lbs. (43 kg)
Alternator Output Optional: 12V, 145W, 12A (Standard on Electric Start Models)
Max. RPM Range 5,400 - 6,100
Digital CD Ignition System S
Start In Gear Protection S
Thermostat Controlled Cooling System S
Through-The-Prop Exhaust S
Shallow Water Drive S
Oil Pressure Warning S
Power Tilt O
S......Standard Features
O......Optional on Certain Models

* Weight specification is based on the lightest version.
** FC-W® is a registered trademark of the National Marine Manufacturers Assoc. (NMMA)
Specifications and descriptions are subject to change without notice.