OUTBOARDS

MFS150A

HIGH POWER

When it comes to high-horsepower outboard motors, weight still matters.
The lighter the engine, the more responsive and efficient the performance.

Designed with an optimized lightweight structure, the MFS150A delivers class-leading power-to-weight performance, translating into quicker acceleration, confident handling, and efficient operation at 150 horsepower.

With bold new styling featuring dynamic 3D side decals and a sporty rear design, the MFS150A not only looks the part.
It also provides outstanding torque, increased durability, optimized weight, and smooth operation.

Unique and industry-first 4-2-1 Performance Tuned Exhaust manifold has been designed to maximize low end torque and acceleration performance. Best in class torque to displacement ratio creates excellent performance for all styles of boats from light to heavy weight, pleasure or commercial use.

Engineered with Simpliq™ Technology, the MFS150A has a SOHC-4V design. The spark plugs are strategically placed in the center of each combustion chamber for the most efficient combustion with optimal heat conduction, which results in strong running and fuel efficiency.

With the introduction of MFS150A counter-rotation model, the combination of standard and counter rotation models provides better maneuverability and stability in twin MFS150A applications.

Standard features include:
•Lightest weight in its class
•Low gear ratio (2.08:1) provides low end torque and better top end performance
•Fresh-water Flushing System designed to make routine flushing easier
•High Output 41 amp Alternator

Experience a new level of boating excitement with Tohatsu’s new 150 hp outboard motor.

Tohatsu 150 hp 4-Stroke Benefits

  • Bold new styling with dynamic 3D side decals and a sporty rear design
  • Exhilarating boating performance
  • Superior durability & optimized weight
  • Outstanding fuel economy from unique SOHC-4V design
  • The smoother performance, better fuel economy achieved by the newly installed Knock sensor
  • Improved noise level and quality of noise at idling
  • Fine-tuned ECU Programming
  • Available in counter-rotation for ultra long (25”) shaft length
  • Available in long (20”) & ultra long (25”) shaft lengths

High Performance and Easy Operation

  • 4-2-1 Performance Tuned Exhaust generates high torque to get you on plane quicker
  • Incorporating an all-new, model-exclusive camshaft and valve system that advances overall engine performance.
  • Fine-tuned ECU provides the strong acceleration when needed
  • Electronic Fuel Injection
  • MicroComputer Programmed ignition system for quicker starts
  • High output 41 amp alternator
  • Adjustable steering friction and trim tab for reducing steering effort
  • Power Trim and Tilt

Fundamentals for User Convenience and Reliability

  • 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

Warning & Protection

  • Low oil pressure warning (visual and audible)
  • Overheat warning (audible)
  • Start-in-gear protection for safer engine starting
  • Safety lanyard (an essential protection feature standard on all Tohatsu outboards)
  • Over-rev. limiter

FEATURES

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.
Movie available here

New intake manifold

By adopting a resin intake manifold, the engine achieves smoother and more efficient airflow while contributing to the lightest weight in its class.

Lightest weight in its class

Based on the MFS140 platform, our flagship model now delivers 150 horsepower. Innovations like a resin intake manifold help reduce overall weight, resulting in the lightest engine in its class and setting a new standard for power-to-weight performance.

Outstanding Fuel Economy

Newly installed Knock sensor detects abnormal combustion and feedback to ECU to adjust ignition timing. This contributes to smoother performance and better fuel economy. Among the competing models and MFS140A, MFS150A achieves BEST fuel economy at 2000RPM.

Excellent Fuel Efficiency

MFS75/90/100/115/140/150 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.

Quietness

With the even-length Intake Manifold, 4-2-1 Performance Tuned Exhaust, and fine-tuned ECU, MFS150 provide exhilarating and performance-inspired engine sound. Also within the redesigned large capacity Idle Port, sounds reflect off each other to dampen the exhaust flow which contributes to the lowest sound at idle.

Maneuverability

With its fined-tuned ECU programming, MFS75/90/100/115/140/150 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.

Counter-rotation

The combination of standard and counter rotation models improves maneuverability and stability in twin MFS150 applications.

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.

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.

SPECIFICATIONS

Engine 4 Cylinder
Output 150 hp (110.3 kw)
Displacement 1995 cc (121.6 cu.in.)
Bore x Stroke 84 x 90 mm (3.30 x 3.55 in)
Max. RPM Range 5,500 - 6,200
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", 25"
Fuel Unleaded Gasoline (87 Octane) or higher
Oil Type NMMA Certified FC-W® 4-stroke oil**
Oil Capacity 1.11 gal (4.2 L) w/filter
Weight* 393.5 lbs. (178.5 kg)
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
* 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.
Model Shaft Length Cylinders Electric Start Tiller Handle Remote Control 12V Charging
System
Power
Trim &Tilt
Counter Rotation
MFS150AETL 20 4 S See Note See Note S S
MFS150AETUL 25 4 S See Note See Note S S
MFS150AETCUL 25 4 S See Note See Note S S S
MFS150AWETL 20 4 S See Note See Note S S
MFS150AWETUL 25 4 S See Note See Note S S
MFS150AWETCUL 25 4 S See Note See Note S S S
S:Starndard
Note : Control type can be chosen from multi function tiller and remote control.
Specifications subject to change without notice. Additional models and/or configurations may be available. Contact your local dealer for details.

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