Tohatsu 4HP MFS4DDS 4-Stroke Outboard – 15″ Shaft, Tiller Handle, Manual Start

Tohatsu MFS4DDS 4HP Outboard Motor

In order to resolve the complexities of portable manual propulsion on short-transom utility boats, the Tohatsu 4 MFS4DDS utilizes a single-cylinder OHV architecture with a 123cc displacement. This engineering configuration features a high-efficiency combustion system and a 2.15 to 1 gear ratio to maximize rotational efficiency on aluminum dinghies or inflatable tenders. By optimizing the torque curve through this specialized 4-stroke design, the motor achieves superior hydrodynamic efficiency when paired with 15-inch transom hulls requiring a multi-function tiller for intuitive operator handling and a manual recoil start system for maximum weight reduction.

Maintaining structural integrity ensures the Tohatsu 4 MFS4DDS remains impervious to degradation through YDC-30 alloy construction and sacrificial anodes for extreme saltwater protection. This marine propulsion platform integrates an internal fuel tank with a specialized valve for external tank connection, while the front-mounted shift lever ensures ergonomic accessibility during docking maneuvers. The 4-stroke platform utilizes advanced digital ignition timing to ensure full regulatory compliance with EPA Tier 3 standards for low-emission transit while delivering the structural stability required for reliable service as a portable marine propulsion platform.

Key Features of Tohatsu 4 MFS4DDS

• Output delivers 4HP of consistent single-cylinder propulsive torque
• Advanced 4-stroke architecture ensures high fuel saving efficiency
• Total weight is 55 lbs for ultimate portability
• Transom mount fits 15 inch short shaft applications
• Manual start system provides reliable ignition without battery power
• YDC-30 alloy housing protects internal drive components from salt
• Commercial and private use includes 5 year limited warranty