The Tohatsu MFS25D represents a breakthrough in mid-range outboard motor design, combining robust 25 horsepower performance with innovative weight-saving engineering that makes it the lightest 3-cylinder motor in its class. At just 128 pounds, this remarkable engine is 19% lighter than its predecessor, achieving a dramatic 30-pound weight reduction through intelligent redesign of the crankshaft and intake manifold without compromising reliability or performance.
Powered by an advanced 3-cylinder, 4-stroke engine with 30.5 cubic inches of displacement, the MFS25D features Tohatsu’s groundbreaking battery-less Electronic Fuel Injection (EFI) technology. This innovative system delivers smoother operation, easier starting in all conditions, and significantly improved fuel efficiency compared to traditional carbureted engines. The EFI system automatically adjusts fuel delivery for optimal performance across varying conditions, ensuring consistent power whether you’re trolling at low speeds or running at wide-open throttle.
The engine’s 2.4 x 2.25 inch bore and stroke configuration, combined with a 2.17:1 gear ratio, optimizes low-end torque delivery for excellent acceleration and hole shot performance. Operating smoothly across its 5,000-6,000 RPM range, the MFS25D provides responsive power that’s perfect for a wide variety of boat types including inflatables, RIBs, aluminum boats, FRP vessels, and pontoons.
One of the standout features of the MFS25D is its newly designed torpedo-shaped gear case, engineered for optimal hydrodynamic flow. This advanced design reduces water drag and improves overall performance from planing to top-end speed, while the optimized gear case includes an auxiliary water intake port under the cavitation plate for enhanced cooling efficiency.
The MFS25D incorporates Tohatsu’s Simpliq™ Technology philosophy, offering user-friendly features such as adjustable idle and trolling speed control (750-1050 RPMs) accessible through your remote control or multi-function tiller handle. The high-output charging system delivers 17.5 amps, best-in-class charging capability achieved through engineering improvements including a lightweight, compact water-cooled rectifier and stronger magnets on the magneto.
Available in both Aqua Marine Blue and Beluga White color options, the MFS25D offers versatile installation options with 15-inch and 20-inch transom heights. The engine accommodates propellers ranging from 6 to 13 inches, allowing you to fine-tune performance for your specific application and boat configuration.
The motor features a transparent fuel filter with floating indicator ring and tool-free quick drain valve for easy maintenance, while repositioned upper and lower mounts reduce vibration for smoother operation. The new flywheel design generates improved airflow inside the cowling, contributing to better engine cooling and longevity.
Whether you’re powering a fishing boat, recreational craft, or work boat, the Tohatsu MFS25D delivers an unmatched combination of lightweight portability, fuel efficiency, and reliable performance. Backed by Tohatsu’s industry-leading 5-year limited warranty and supported by Northeast Marine’s expert service, this motor represents the pinnacle of modern outboard engineering, proving that advanced technology and environmental responsibility can coexist with outstanding performance and value.
