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Tohatsu MFS115

  • Tohatsu MFS115
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Overview
The MFS115 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 MFS115 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, MFS115 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 MFS115 provides the industry leading features you expect from Tohatsu.

Tohatsu 115 hp 4-Stroke Benefits

  • Dynamic design with sophisticated details Click Here
  • Exhilarating boating performance
  • Superior durability & optimized weight
  • Outstanding fuel economy from unique SOHC-4V design
  • Performance-inspired engine sound and the most quiet at idle
  • Fine-tuned ECU Programming
  • Available in long (20”) & ultra long (25”) shaft lengths
  • Ultra-low 3 star CARB & EPA emission approved
  • 5 Year limited warranty

High Performance and Easy Operation

  • 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

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

 

Specifications
Model
MFS115
Year
2023
Sale Type
New
Manufacturer
Tohatsu
Fuel
Unleaded Gasoline (87 Octane) or higher
Engine
4 Cylinder
Output
115 hp (84.6 kw)
Weight*
392 lbs. (178 kg)
Starting
Electric
Control Type
Remote or Tiller
Displacement
1995 cc (121.6 cu.in.)
Oil Capacity
1.11 gal. (4.2 L) w/filter
Bore X Stroke
84 x 90 mm (3.31 x 3.54 in)
Max. RPM Range
5,150 - 5,850
Ignition System
MicroComputer Programmed
features

4-2-1 Performance Tuned ExhaustTohatsu MFS115

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.

Outstanding TorqueTohatsu MFS115

Industry first 4-2-1 Performance Tuned Exhaust system provides outstanding torque performance, top end speed, acceleration, and exceptional fuel economy. On certain boat applications, the MFS140A will perform similarly when compared to heavier 150hp outboards that weigh as much as 100 pounds pounds more.

Superior Durability & Optimized WeightTohatsu MFS115

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.

Excellent Fuel EfficiencyTohatsu MFS115

MFS75/90/115 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.

QuietnessTohatsu MFS115

With the even-length Intake Manifold, 4-2-1 Performance Tuned Exhaust, and fine-tuned ECU, MFS75/90/115 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.

ManeuverabilityTohatsu MFS115

With its fined-tuned ECU programming, MFS75/90/115 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. Also, Upper and Lower Mounts, and the Gear Case are optimized for direct steering response & maneuverability, and greater stability.

Multi-Function Tiller Handle with Grip-End PTT SwitchTohatsu MFS115

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)Tohatsu MFS115

The optional 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.

 

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Tohatsu MFS115

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