MFS100A

The MFS100 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 MFS100 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, MFS100 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 MFS100 provides the industry leading features you expect from Tohatsu.

Tohatsu 100 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

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

Engine	4 Cylinder
Output	100 ps (73.6 kw)
Displacement	1995 cc (121.6 cu.in.)
Bore x Stroke	84 x 90 mm (3.31 x 3.54 in)
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	4.2 L (1.11 gal.) w/filter
Weight*	178 kg (392 lbs.)
Alternator Output	12V, 492W, 41A
Max. RPM Range	5,150 - 5,850
Electronic Fuel Injection	Standard
Start In Gear Protection	Standard
Thermostat Controlled Cooling System	Standard
Through-The-Prop Exhaust	Standard
Overheat Buzzer	Standard
Power Trim and Tilt	Standard
Oil Pressure Warning	Standard
Variable Idle Speed	Standard