With Tohatsu’s reputation for powerful speed and unmatched reliability.

With Tohatsu’s reputation for powerful speed and unmatched reliability, the Tohatsu 25 hp 4-stroke will keep boaters loyal. For 2006, we have added the first battery-less EFI (Electronic Fuel Injection) system to go on an outboard.

Tohatsu 4-stroke benefits:

  • Designed with proven technology
  • Advanced cross-flow induction for smooth operation
  • Canister style oil filter for easy replacement
  • Larger capacity oil reservoir for optimum lubrication
  • Tuned intake system for crisp takeoffs
  • Ultra low emission, EPA and CARB approved

High performance and easy operation:

  • Electronic fuel injection
  • The boating industry' first battery-free, manual start EFI 4-stroke
  • Digital CD ignition system for quicker starts
  • Large alternator and rectifier for superior battery charging
  • Adjustable steering friction and trim tab for reducing steering effort
  • Front mounted shift lever for easier operation
  • Shallow water drive, 6 positions*
  • Gas assisted shocks*
  • Power trim & tilt*
  • Remote control**

Fundamentals for user convenience and reliability:

  • Through-the-prop exhaust for a quiet ride
  • Thermostatically controlled cooling system for consistent engine temperature
  • Stainless steel water pump housing 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
  • Plastic 25 liter fuel tank for 30 and 25; 12 liter fuel tank for 18 and 15, both include fuel fittings and fuel line
  • Aluminum propeller

Warnings and protection:

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


Power18.40 HP / 13.53 KW
Bore and stroke61 x 60
Max. Speed range5000-6000
Starter systemmanual or electric
Control systenTwist grip type or remote control
Gear ratio1.92
Propeller Selection area-
Water level15", 20"
Fuelunleaded gasoline
Recommended OilAPI SF, SG, SH, SJ, SL or SM FCW 10W-30/40
Fuel tank25L
Weight82.00 kg
Alternator power12V, 180W, 15A
TOSC compatibility*-
All TOHATSU Four Strokes meet EU emission standards


MFS25B Dimensions


Owners Manuals for MFS25B

Modell B-003-11080-7 - Download Owners Manual