The Tohatsu MFS90AETL represents outstanding value in mid-range outboard engineering, combining 90 horsepower of refined 4-cylinder power with Tohatsu’s revolutionary technology and classic Aquamarine Blue finish. This Generation A model features a robust 121.6 cubic inch, 4-cylinder engine with Single Overhead Cam design and electronic fuel injection, delivering smooth power throughout its 5,150-5,850 RPM operating range. The precision-engineered 20-inch shaft length makes this outboard ideal for center console boats, bay boats, sport fishing vessels, and recreational boats with standard transom configurations.
The industry-first 4-2-1 Performance Tuned Exhaust system sets this outboard apart from the competition, providing outstanding torque performance, top-end speed, acceleration, and exceptional fuel economy. This innovative exhaust design features equal-length passages for each cylinder, promoting optimal performance throughout the entire RPM range while creating extra suction to enhance exhaust flow. Combined with the unique SOHC-4V design and strategically placed spark plugs, the MFS90AETL delivers exceptional torque-to-displacement ratio while maintaining superior fuel efficiency.
The classic Aquamarine Blue finish provides Tohatsu’s signature appearance while offering proven durability and UV resistance in demanding marine environments. Electric start ensures reliable operation in all conditions, while the integrated power trim and tilt system provides optimal boat attitude control for maximum performance and comfort. At 392 pounds, this outboard delivers exceptional power-to-weight ratio while maintaining the structural integrity required for serious fishing and cruising applications.
Built on the legacy of Tohatsu’s top-performing and most reliable engines, including the best-selling MFS40/50/60 and MFS9.9/15/20 models, the MFS90AETL features dynamic design and sophisticated details with industry-first innovative features and characteristics. Advanced features include adjustable trolling speed control from 650-850 RPMs in 5-step increments, accessible through remote control systems or multi-function tiller handle options.
TOCS (Tohatsu Onboard Communication System) ensures seamless integration with modern marine electronics through simple plug-and-play connections. The exhilarating and performance-inspired engine sound, combined with the even-length intake manifold and fine-tuned ECU programming, provides the lowest sound at idle while delivering exceptional performance when needed.
The revolutionary design provides outstanding torque, increased durability, optimized weight, and smooth operation that delivers top performance available only from Tohatsu. This performance-oriented design offers superior performance that competes with heavier outboards while maintaining the reliability and fuel efficiency that Tohatsu is renowned for worldwide.
Standard equipment includes a high-output alternator producing 12V, 492W, 41A to handle demanding electrical loads from fishfinders, GPS units, and communication equipment essential for fishing and cruising. Standard safety features include comprehensive overheat warning system and advanced diagnostic capabilities for reliable operation during extended outings.
The 2.08:1 gear reduction ratio ensures optimal propeller performance across a wide range of applications, from recreational fishing to light commercial operations. California CARB 3-star rated for ultra-low emissions and backed by Tohatsu’s industry-leading 5-year limited warranty, the MFS90AETL represents over 100 years of Japanese marine engineering excellence. Whether powering bay boats, center console vessels, or sport fishing boats, this outboard delivers the perfect combination of power, innovation, and reliability that practical boaters have trusted since Tohatsu’s founding in 1922.
