This Service Repair Workshop Manual covers the Tohatsu MFS 4/5/6 B C series of 4-stroke outboard engines. Designed for reliable performance, these engines offer horsepower ranging from 4 to 6 HP and feature water-cooling, CDI ignition, and carburetor fuel delivery. They are equipped with a manual recoil starter and offer Forward, Neutral, and Reverse gear selection. This manual provides comprehensive information for maintaining and repairing these robust and efficient outboard motors. The purpose of this manual is to provide detailed guidance for the service, repair, and maintenance of the Tohatsu MFS 4/5/6 B C outboard engines. It includes complete disassembly and assembly procedures, service information, data, inspection and adjustment guidelines, and troubleshooting sections. Coverage extends to the fuel system, power unit, lower unit, bracket, and electrical system, including wiring diagrams. Specific information for the 'C' model is also included, ensuring technicians and owners have the necessary resources to keep their engines in optimal condition.