4 stroke 90hp outboard engine
tohatsu 4 stroke outboard engine
4 stroke 90hp outboard engine
tohatsu 4 stroke outboard engine
4 stroke 90hp outboard engine
tohatsu 4 stroke outboard engine
4 stroke 90hp outboard engine
tohatsu 4 stroke outboard engine

MFS90 90hp 4-stroke outboard

Models available:

  • MFS90A

Overview:

  • Dynamic design with sophisticated details
  • Exhilarating boating performance
  • Superior durability & optimized weight
  • Outstanding fuel economy from unique SOHC-4V design
  • Performance-inspired engine sound and the most quietest at idle
  • Fine-tuned ECU Programming
  • Available in long (20”) & ultra long (25”) shaft lengths
  • 5 Year limited warranty


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.


Where to buy Prices Owners Manual PDF



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.





Key Features:

Tohatsu outboard motors - performance tuned enhausts

4-2-1 Performance Tuned Exhaust


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.

Tohatsu outboard motors - performance tuned enhausts

Outstanding Torque


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

Tohatsu outboard motors - performance tuned enhausts

Superior Durability & Optimized Weight


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.

Tohatsu outboard motors - performance tuned enhausts

Excellent Fuel Efficiency


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.

Tohatsu outboard motors - performance tuned enhausts

Quietness


With the even-length Intake Manifold, 4-2-1 Performance Tuned Exhaust, and fine-tuned ECU, MFS75/90/100/115 provide exhilarating and performance-inspired engine sound. Also within the large capacity Idle Port, sounds reflect off each other to dampen the exhaust flow which contributes to the lowest sound at idle.

Tohatsu outboard motors - performance tuned enhausts

Maneuverability


With its fined-tuned ECU programming, MFS75/90/100/115 are designed to improve acceleration when needed in order to get the boat to plane quicker. When you throttle to wide open, the ECU recognizes it and ignites in all four cylinders at the same time. Simultaneously, the ECU optimizes and supplies adequate air & fuel which makes air/fuel mixture more suitable for rapid acceleration to generate higher torque. The higher the torque you have, the stronger the acceleration you will get, resulting in enhanced hole shots and thus, quicker planning. (Click Here) Also, Upper and Lower Mounts, and the Gear Case are optimized for direct steering response & maneuverability, and greater stability.

Tohatsu outboard motors - performance tuned enhausts

Multi-Function Tiller Handle with Grip-End PTT Switch


Multi-Function Tiller Handle is a great choice for commercial use. It has an ergonomically designed large Shift Lever located at the front and a longer Throttle Grip with a PTT (Power Trim & Tilt) switch located at the grip-end for easier operation and maneuverability. To balance different wind and current conditions, the Variable Idling System allows the user to select the best idling speed from 5 different RPM ranges by simply pressing the Key Switch.

Tohatsu outboard motors - performance tuned enhausts

TOCS 4.3 inch LCD Display (optional)


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.

  • • 4-2-1 Performance Tuned Exhaust generates high torque to get you on plane quicker
  • • Fine-tuned ECU provides the strong acceleration when needed
  • • Electronic Fuel Injection
  • • MicroComputer Programmed ignition system for quicker starts
  • • High output 41 amp alternator
  • • New and improved gear case with wider splash plate and anti-ventilation plate
  • • Adjustable steering friction and trim tab for reducing steering effort
  • • Power Trim and Tilt
  • • Variable idling speed control from 650 to 850 RPMs at 5-steps
  • • Sheet Molding Compound (SMC) cowlings for durability
  • • Anodized major aluminum components for greater corrosion resistance
  • • Oil catch tray underneath the oil filter for cleaner oil filter changes
  • • Easily accessible and removable fuel filter allows simple and quick water draining
  • • More than 16 sacrificial anodes strategically placed throughout all major components
  • • Through the prop exhaust for a quieter operation
  • • Built-in freshwater flushing system for easy routine flushing
  • • Variable idling speed control from 650 to 850 RPMs at 5-steps
  • • A camshaft-driven trochoid oil pump ensures long-term durability of critical engine components
  • • Stainless steel water pump housing liner for outstanding durability
  • • Low oil pressure warning
  • • Overheat warning
  • • Alternator charging alert
  • • Start-in-gear protection for safer engine starting
  • • Over-rev. limiter

7 Years limited warranty

7 Years Warranty Cover Includes: (Pleasure Use Only). 1st 3 years covers parts and labour. Please see full details here.

Where to Buy

Find a UK dealer of Tohatsu engines, parts and services near you with our Dealer Locator. We supply to over 60 delearships.

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