The MFS90 design is built on our best-selling models the MFS40/50/60 and the MFS9.9/15/20. The legacy of our top performing and most reliable engines has been passed on, with a dynamic design and sophisticated details, to our all new MFS90 4-stroke outboard with industry-first innovative feature and characteristics.
The groundbreaking industry-first technology, 4-2-1 Performance Tuned Exhaust, provides incomparable torque throughout the RPM range. The higher torque you have the better hole shot, which translates to faster speeds. Higher torque also means less drag, which in turn means more boating options; it could be applied to any type of boat. From light to heavy, pleasure or commercial boats.
The synergy between the 4-2-1 Performance Tuned Exhaust and our fine-tuned ECU programming, MFS90 provides a strong acceleration when needed in order to get the boat on plane quicker and allowing you to reach the top end speed faster.
Equipped with standard features such as Variable Idle System allowing you to change the idle speed from 650 to 850 RPMs, a low gear ratio (2.08:1) giving you the increased low end torque your boat needs, a fresh-water Flushing System designed to make routine flushing easier, and a High Output 41 amp Alternator, the MFS90 provides the industry leading features you expect from Tohatsu.
Isometric aggregated exhaust manifold “4-2-1 Performance Tuned Exhaust” maximizes torque and acceleration performance. This unique design is an industry-first and can only be found on Tohatsu Outboards. By engineering each exhaust passage to be equal in length, the merging of exhaust of each cylinder creates extra suction that helps pull the exhaust from the engine. This completely eliminates the possibility of exhaust interference and drastically improves the performance. Movie available here
From 4-2-1 Performance Tuned Exhaust, MFS75/90/100/115 have the highest torque that gets you on plane quicker and reach the top end speed faster than any other competitors.
**Data based on research done and collected by Tohatsu Engineering Department
For high durability and weight reduction purposes, Tohatsu optimized each relatively heavy component such as cylinder head, exhaust manifold, engine base, oil pan, lower unit etc.. Also, special anodized process has been utilized on all major aluminum components for prolonged engine life.
MFS75/90/100/115 have a unique SOHC-4V design in its class where competitors are either SOHC-2V or DOHC-4V. Spark plugs are strategically placed in the center of the each combustion chamber for the most efficient combustion with optimal heat conduction which results in strong running and fuel efficiency.
The TOCS (Tohatsu Onboard Communication System) 4.3 inch LCD Display connects to the CAN bus and communicates directly with the engine’s ECU. Engine data, fault codes, and alarms are displayed on the LCD display.
| Engine | 4 Cylinder |
|---|---|
| Output | 90 hp (66.2 kw) |
| Displacement | 1995 cc (121.6 cu.in.) |
| Bore x Stroke | 84 x 90 mm (3.30 x 3.55 in) |
| Max. RPM Range | 5,150 – 5,850 |
| Starting | 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″ |
| Fuel | Unleaded Gasoline (87 Octane) or higher |
| Oil Type | NMMA Certified FC-W® 4-stroke oil** |
| Oil Capacity | 4.2 L (1.11 gal.) w/filter |
| Weight* | 178 kg (392 lbs.) |
| Alternator Output | 12V, 492W, 41A |
| Electronic Fuel Injection | Standard |
| Start In Gear Protection | Standard |
| Thermostat Controlled Cooling System | Standard |
| Through-The-Prop Exhaust | Standard |
| Overheat Buzzer | Standard |
| Oil Pressure Warning | Standard |
| Power Trim and Tilt | Standard |
| Variable Idle Speed | Standard |
| Model | Shaft Length | Cylinders | Electric Start | Tiller Handle | Remote Control | 12V Charging System | Power Trim &Tilt |
|---|---|---|---|---|---|---|---|
| MFS90AETL | 20 | 4 | S | See Note | See Note | S | S |
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.
