The Hornet 50-90 is a versatile scooter from a reputable Taiwanese manufacturer, known for its reliable and sporty offerings in the lightweight segment. This model line, in production for many years, has been a popular choice, offering spirited performance and practical mobility. The Hornet typically features a two-stroke, single-cylinder engine with displacement options of 50cc and 90cc, and is equipped with an automatic Continuously Variable Transmission (CVT) for smooth operation. Its engineering quality is evident in its robust steel tube frame, front disc and rear drum braking systems, and functional lighting, making it suitable for urban commuting and recreational use. This comprehensive workshop service and repair manual provides detailed guidance for maintaining and repairing the Hornet 50-90. It covers all essential systems, including engine mechanicals, fuel and ignition systems, cooling, exhaust, transmission, suspension, braking, electrical components, frame, and bodywork. The manual includes routine maintenance procedures, troubleshooting guides, component overhaul instructions, and specific adjustment procedures, all supported by clear diagrams, technical specifications, and torque values. This resource is invaluable for professional technicians and advanced DIY mechanics seeking to ensure the optimal performance and longevity of their Hornet.