Tohatsu
MFS20
Petrol Outboard
Tohatsu-Product-pages-logo

Engine Specifications

Application

Powerboat Engine

Power Output (HP)

20

Power Output (kW)

14.7

Rated Speed

5,400 - 6,100 RPM

Displacement

333 mL (20.3 cu in)

Cylinders

2

Bore x Stroke

61 x 57 mm

Dry Weight

43 kg

Controls

Certifications

EU, EPA & CARB 3-Star

MFS20 - A New Generation of Power

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 20hp 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

High Performance & 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*

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

Safety & Protection

  • 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


* Certain models
** Remote control models

Multi-Function Tiller Handle

Stop Switch, Front Shift, Friction Adjusting Screw and Power Tilt Switch (PTS: on power tilt models only) are integrated into the tiller handle for convenience.

Stowable Carrying Handle

We’ve incorporated a carrying handle on the front that can easily be tucked away when not in use.

Fuel Water Separator

A high quality, user-friendly fuel water separator is standard equipment on all EFI 20 | 15 | 9.9 motors. This unique yet simple fuel water separator doesn’t require the use of a single tool to drain the water.

Center of Gravity Improved

By moving heavy components (i.e. crankshaft, driveshaft) 30mm forward compared to the previous model, the tilting weight has decreased by 26% from the previous version, making it much easier for users to tilt manually.

Compact Fuel System Layout for Easy Maintenance

The Vapor Separator Tank (VST) has been designed to integrate the high pressure fuel feed pump, regulator, and fuel cooler into one component.

Specifications

Engine4 Stroke 2 Cylinder
Output20 hp (14.7 kw)
Displacement333 cc (20.32 cu.in.)
Bore x Stroke61 x 57 mm (2.40 x 2.24 in)
Max. RPM Range5,400 – 6,100
StartingElectric & Manual or Manual
Control TypeRemote Control or Tiller Handle
Gear ShiftForward – Neutral – Reverse
Gear Ratio2.15:1
Propeller Selection Range6″ – 11.5″
Transom Height15″, 20″
FuelUnleaded Gasoline (87 Octane)
Oil TypeNMMA Certified FC-W® 4-stroke oil** SAE 10W-30/40 (SF, SG, SH, SJ)
Oil Capacity1L (1.06 qt.)
Fuel Tank12 L (3.1 US Gal.) Separate Fuel Tank
Weight*43 kg (94.8 lbs.)
Alternator OutputOptional: 12V, 145W, 12A (Standard on Electric Start Models)
Digital ECU Controlled Ignition SystemStandard
Electronic Fuel InjectionStandard
Start In Gear ProtectionStandard
Thermostat Controlled Cooling SystemStandard
Through-The-Prop ExhaustStandard
Oil Pressure WarningStandard
Shallow Water DriveStandard
Power TiltOption
* 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.
 
ModelShaft LengthCylindersElectric StartTiller HandleRemote Control12V Charging
System
Power TiltRemote Fuel TankPropeller
MFS20ES15″2 S   SS
MFS20EL20″2 S   SS
MFS20EEFS15″2SS S SS
MFS20EEFL20″2SS S SS
MFS20EEPS15″2S SS SS
MFS20EEPL20″2S SS SS
MFS20EEFTS15″2SS SSSS
MFS20EEFTL20″2SS SSSS
MFS20EEPTS15″2S SSSSS
MFS20EEPTL20″2S SSSSS
S:Standard

Specifications subject to change without notice. Additional models and/or configurations may be available. Contact your local dealer for details.

* All information shown is to be used as general information only. Images shown are for illustration purposes only and may not represent the final product. All dimensions, power outputs and technical details are approximate and may vary from time to time depending on a range of factors. Any data shown is subject to change without notice. Some items or accessories may not be available in all areas/regions.