Tohatsu
MFS9.9CY
Petrol Outboard
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Engine Specifications

Application

Powerboat Engine

Power Output (HP)

9.9

Power Output (kW)

7.3

Rated Speed

5,300 - 6,200 RPM

Displacement

209 cc (12.8 cu in)

Cylinders

2

Bore x Stroke

55 x 44 mm

Dry Weight

38.5 kg

Controls

Certifications

EU

MFS9.9CY - New generation lightweight EFI Outboard

The new generation MFS9.9CY(W) model lineup is engineered to be EFI (Electronic Fuel Injection) for the first time in 200cc class.

The battery-less EFI (Electronic Fuel Injection) model is the lightest 2-cylinder 9.9 hp on the market, with upgraded features from its predecessor. In addition to upgrading this model to EFI (Electronic Fuel Injection), Tohatsu has
applied various key features.

Tohatsu 9.9hp 4-Stroke Benefits

  • Lightest 2-Cylinder EFI available on the market
  • Reduced vibration for smooth and stable running at all speeds
  • Greatly reduced induction noise for a quieter ride
  • Trim tab reduces steering effort, functioning also as the sacrificial anode that protects the engine from electrolysis

Easy Operation & Handling

  • Digital CD ignition for easier engine starting, quicker throttle response and smoother trolling
  • Recoil starter with larger reel making manual starting fast and easy
  • Shallow water drive*
  • 6 trim positions*
  • 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
  • 12 litre fuel tank with fuel gauge
  • Aluminum propeller

Safety & Protection

  • 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

 

* Certain models

The very first Battery-less EFI System in 8/9.9hp.

The EFI system will provide consistent starting, stability at idle and fuel efficiency. Additionally, the EFI system will eliminate the hassles experienced with carbureted models, such as clogging and overhaul of carburetor because of ethanol fuel related issues.

Water Cooled Fuel Pump

Water cooled fuel pump is now a standard feature on MFS8C/9.9CY(W) to offer consistent starting, stable idling and optimal running.

Newly Designed Carrying Handle for Tiller Model

In addition to an overall cleaner look by routing shift & throttle cables and wirings through the handle, the new carrying handle features a 40% increase in surface area and smooth shape to reduce the pressure when carrying.

Improved Center of Gravity

The center of gravity has slightly shifted toward the front of the outboard reducing the manual tilt effort by 19%.

Easy-to-Use Flushing Port

Similar to other Tohatsu models such as MFS9.9E-MFS140A, flushing port has been relocated to the mid-section for easier access. Freshwater flushing is now easier than ever as no special tools are required.

Improved Crankcase Ventilation System

After countless testing and analysis, the returning port of the engine crankcase vent has been positioned where the vacuum pressure draws the blow-by vapors more efficiently.

Functional Cowling Design

Rubber grip has been installed at the tilt handle for easier manual tilting and transporting.

Specifications

Engine4 Stroke 2 Cylinder
Output9.9 hp (7.3 kw)
Displacement209 cc (12.8 cu.in.)
Bore x Stroke55 x 44 mm (2.17 x 1.73 in)
Max. RPM Range5,300 – 6,200
StartingElectric or Manual
Control TypeRemote Control or Tiller Handle
Gear ShiftForward – Neutral – Reverse
Gear Ratio2.08:1
Propeller Selection Range6.5″ – 9.5″
Transom Height15″, 20″, 25″
FuelUnleaded Gasoline (87 Octane)
Oil TypeNMMA Certified FC-W® 4-stroke oil** SAE 10W-30/40 (SF, SG, SH, SJ)
Oil Capacity800 mL (27 fl. oz.)
Fuel Tank12 L (3.1 US Gal.) Separate Fuel Tank
Weight*38.5 kg (85 lbs.)
Alternator Output12V, 84W, 7A
Digital CD Ignition SystemStandard
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
MFS9.9CYS15″2 S   SS
MFS9.9CYL20″2 S   SS
MFS9.9CYUL25″2 S   SS
MFS9.9CYEFS15″2SS S SS
MFS9.9CYEFL20″2SS S SS
MFS9.9CYEPS15″2S SS SS
MFS9.9CYEPL20″2S SS SS
MFS9.9CYEFTS15″2SS SSSS
MFS9.9CYEFTL20″2SS SSSS
MFS9.9CYEPTS15″2S SSSSS
MFS9.9CYEPTL20″2S SSSSS
MFS9.9CYWS15″2 S   SS
MFS9.9CYWL20″2 S   SS
MFS9.9CYWEPL20″2S SS SS
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.Â