The Tohatsu MFS90A is a high-performance 90 horsepower 4-stroke outboard engine designed for medium to large-sized boats. It features the innovative 4-2-1 Performance Tuned Exhaust system, which maximizes torque and acceleration across the entire RPM range, ensuring quicker planing and higher top-end speeds.
- 4-2-1 Performance Tuned Exhaust: This industry-first design enhances torque and acceleration by equalizing exhaust passage lengths, reducing drag and improving performance.
- Electronic Fuel Injection (EFI): Ensures optimal combustion and reduced fuel consumption for improved efficiency.
- Variable Idle System: Allows adjustment of idle speed from 650 to 850 RPM in five steps, providing flexibility for various boating conditions.
- High Output 41-Amp Alternator: Delivers ample power for onboard electronics and accessories.
- Freshwater Flushing System: Facilitates routine maintenance and extends engine life by allowing easy flushing of the cooling system.
- Low Gear Ratio (2.08:1): Provides increased low-end torque for better acceleration and planing.
- Anodized Aluminum Components: Enhances corrosion resistance and durability for prolonged engine life.
Technical Specifications:
- Engine Type: 4-cylinder, 4-stroke
- Displacement: 1995 cc (121.6 cu.in.)
- Bore x Stroke: 84 x 90 mm (3.30 x 3.55 in)
- Maximum RPM Range: 5,150 - 5,850 RPM
- Starting System: Electric
- Control Type: Remote Control or Tiller Handle
- Gear Shift: Forward - Neutral - Reverse
- Gear Ratio: 2.08:1
- Ignition System: MicroComputer Programmed
- Transom Height: 20" (508 mm) or 25" (635 mm)
- Fuel Type: Unleaded Gasoline (87 Octane or higher)
- Oil Capacity: 4.2 L (1.11 gal.) with filter
- Weight: 178 kg (392 lbs.)
- Alternator Output: 12V, 492W, 41A
- Electronic Fuel Injection: Standard
- Power Trim and Tilt: Standard
- Variable Idle Speed: Standard
Materials:
- Cowlings: Sheet Molding Compound (SMC) for enhanced durability
- Major Aluminum Components: Anodized for greater corrosion resistance
- Water Pump Housing Liner: Stainless steel for outstanding durability
Dimensions:
- Length: Varies based on shaft length (20" or 25")
- Width: Approximately 1,000 mm (39.4 inches)
- Height: Approximately 1,500 mm (59.1 inches)
Compatibility Information:
The MFS90A is suitable for a wide range of boats, from lightweight recreational vessels to heavy-duty commercial crafts, thanks to its versatile torque and acceleration capabilities.
