The Tohatsu MFS115 represents the perfect balance of power and efficiency in the mid-range outboard category, delivering robust 115 horsepower through its revolutionary 4-cylinder design enhanced with industry-first 4-2-1 Performance Tuned Exhaust technology. This innovative engineering breakthrough has been specifically designed to maximize torque output and acceleration performance, creating the best-in-class torque-to-displacement ratio that delivers exceptional performance across diverse boating applications.
The heart of the MFS115’s superior performance lies in its advanced SOHC-16V design with strategically positioned spark plugs in the center of each combustion chamber. This configuration ensures optimal heat conduction and the most efficient combustion possible, resulting in strong running characteristics and impressive fuel efficiency throughout its 5,000-6,000 RPM operating range. The substantial 121.6 cubic inch displacement generates reliable power while maintaining excellent economy.
Revolutionary 4-2-1 Performance Tuned Exhaust technology sets the MFS115 apart from all competitors in its class. The equal-length exhaust passages for each cylinder promote optimal performance throughout the entire RPM range, while the innovative design eliminates exhaust gas interference compared to conventional 4-to-1 exhaust manifolds. This engineering achievement delivers outstanding torque that generates strong acceleration and impressive top-end speed capabilities.
The even-length intake manifold works in harmony with the performance-tuned exhaust system and fine-tuned ECU programming to create an exhilarating, performance-inspired engine sound while optimizing power delivery. The large capacity idle port incorporates sound-dampening technology that reflects exhaust sounds off each other, contributing to the lowest sound levels at idle for peaceful operation.
Versatile operation is enhanced by adjustable idle and trolling speed control, allowing operators to select optimal RPM settings from 650 to 850 in convenient 5-step increments using the key switch on the remote control box or multi-function tiller handle. This feature provides precise control for various fishing and maneuvering situations.
Advanced connectivity comes through the TOCS (Tohatsu Onboard Communication System), enabling seamless plug-and-play communication between the outboard and onboard electronic devices. The robust 12V, 41A alternator output at 6,000 RPM ensures reliable power for all electrical systems and modern marine electronics.
At 392 pounds, the MFS115 offers an excellent power-to-weight ratio while accommodating propellers from 7″ to 17″ pitch for diverse performance requirements. Compatible with 15″, 20″, and 25″ transom heights, this versatile motor adapts to various boat designs from aluminum fishing boats to fiberglass cruisers.
Backed by Tohatsu’s industry-leading 5-year limited warranty and comprehensive dealer support network, the MFS115 delivers revolutionary mid-range performance that redefines expectations. Whether powering fishing adventures, family outings, or commercial applications, the MFS115 provides the perfect combination of power, efficiency, and reliability that serious boaters demand.
