This manual covers the 1980 Yamaha QT50, also known as the QT 50. This lightweight, fuel-efficient scooter was designed as an urban commuter and for recreational use, offering simple operation and economical running costs. It competed with other small-displacement scooters of its era, providing a distinctive style and ease of use for younger riders and those seeking affordable personal transportation. The QT50 features a 49cc two-stroke, air-cooled engine and an automatic V-belt transmission, making it a practical choice for everyday travel.

This comprehensive service manual provides detailed information for the maintenance and repair of your 1980 Yamaha QT50. It covers all major systems, including the engine, fuel system, ignition, transmission, brakes, suspension, and electrical components. You will find step-by-step instructions for routine maintenance, troubleshooting common issues, component disassembly and reassembly, and complete overhauls. Technical specifications, torque values, and wiring diagrams are also included to assist owners, mechanics, and technicians in keeping the QT50 in optimal working condition.