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Quick Overview


  • Light and compact!

  • Designed with proven technology

  • Greatly reduced induction noise for a quieter ride

  • Sacrificial anode that protects the engine from electrolysis

  • Ultra Low emissions, U.S. EPA and CARB approved

  • Digital CD ignition for easier engine starting, quicker throttle response and smoother trolling

  • Fast-idle choke system allowing easier manual choke operation

  • Recoil starter with larger reel making manual starting fast and easy

  • Shallow water drive

  • Adjustable steering friction for reducing steering effort

  • 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 

  • Plastic fuel tank Separate 12 liter fuel tank with fuel fittings and fuel line or Built-in 1.15 liter includes fuel connector for use with an optional external fuel tank

  • Aluminum propeller

  • Low oil pressure indicator

  • Safety lanyard (an essential protection feature standard on all Tohatsu outboards)

  • Start-in-gear protection for safer engine starting

  • Over-rev. limiter


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 Model MFS5

Type   Four Stroke
Maximum output HP (kw) 5 (3.7)
Maximum operating range rpm 4500-5500
Fuel consumption at W.O.T L/Hr (Gal/Hr) 1.7 (0.45)
Number of cylinders    1
Bore x Stroke  mm (in)  59 x 45 (2.32 x 1.77)
Displacement  cc (Cu in) 123 (7.5)
〔Without De-comp.〕
kpa (kg/㎡) 290 (3.0) 〔 780 (8.0) 〕
Engine lubrication system    Trochoid pump
Starting system    Manual
Spark plug    NGK DCPR6E
Ignition timing  degree  BTDC0゜- BTDC25゜
Alternator output    (Option 12V 60W 5A)
Engine oil    NMMA Certified FC-W® 4-Stroke Oil
Engine oil capacity  L (Gal)  0.45 (0.12)
Fuel tank capacity  L (Gal)  12 (3.17)
Speed control    Twist grip type
Gear reduction ratio    2.15 (13:28)
Emission Compliance   EPA & CARB 3-Star
Specifications and descriptions are subject to change without notice.
Standard and Optional Extras   
Type  DS / DL  SS / SL
Electric Starter    -   -
Manual Recoil Starter   ●
Decompression Release   ●
Engine Stop Switch Lanyard   ●
Alternator   ○   ○
Rectifier   ○  ○
Dual Tank Connector   ●   -
Transom  15 / 20  15 / 20
Propeller     ●    ●
Analog Tachometer    -   -
Analog Trim Meter    -   -
Remote Control Box    -   -
12L Plastic Fuel Tank   ○   ●
1.3L In-Tank   ●   ●
Tool Kit   ●   ●
Emergency Starter Rope   ●    ●
Spare Spark Plugs   ●   ●
Owners Manual   ●   ●
  Standard    Optional           - Not Applicable   


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