The Tohatsu MFS25DEFL represents the ideal fusion of Tohatsu’s revolutionary lightweight engineering and electric start convenience in a long-shaft tiller configuration. At 138 pounds, this Generation D model delivers 25 horsepower with the convenience of electric start while maintaining the direct control and precise maneuverability that experienced boaters prefer in tiller-steered engines. The 20-inch shaft length makes this motor perfect for deeper transom applications, bay boats, and larger hulls requiring proper water immersion for optimal cooling and performance.
Advanced battery-less Electronic Fuel Injection technology ensures reliable operation across the entire 5,000-6,000 RPM range, delivering exceptional fuel efficiency at 2.3 gallons per hour at wide-open throttle while maintaining EPA and CARB 3-Star emission compliance. This sophisticated EFI system provides smooth acceleration, easier cold starts, and superior fuel economy in all conditions. The 500cc displacement with optimized 61mm x 57mm bore and stroke delivers impressive torque characteristics specifically tuned for efficient 25 horsepower output.
The newly designed torpedo-shaped gear case reduces drag and improves hydrodynamic flow, while repositioned engine mounts minimize vibration for quieter operation. The optimized 2.17:1 gear ratio maximizes low-end torque for efficient planing and excellent acceleration. Engineering improvements include dual water intakes for enhanced cooling, transparent fuel filter with floating indicator ring, and robust 12V, 210W, 17.5A alternator output that keeps batteries charged during extended outings.
The MFS25DEFL features Tohatsu’s redesigned standard tiller handle with integrated electric start button, four-step variable idle control (750-1050 RPM), forward-neutral-reverse shifter, throttle friction adjustment, and engine stop switch. The twist-grip throttle provides precise speed control while the longer shaft ensures proper cooling water flow for deeper transom installations. Manual recoil starter provides reliable backup starting capability, ensuring dependable operation in any situation.
Built for versatility and hands-on control, the MFS25DEFL excels with aluminum bay boats, larger fishing boats, deeper transom applications, and craft where direct tiller control is preferred for precise maneuvering. The included 25-liter fuel tank provides extended range for longer fishing trips and excursions. High-solid paint coating provides superior protection against UV rays and saltwater corrosion. With Tohatsu’s comprehensive 5-year limited warranty and proven Japanese engineering excellence, the MFS25DEFL delivers the perfect combination of modern electric start convenience and responsive tiller control for boaters who demand both reliability and the direct connection between operator and engine in a long-shaft configuration.
