The Gilera Dakota ER 350 and 500 models represent a significant offering from the historic Italian motorcycle manufacturer, known for its performance and racing heritage. These dual-purpose or adventure-style motorcycles, likely produced during the 1980s, were designed to offer versatility for both on-road and light off-road use. While specific production years are not detailed, the models were available in 350cc and 500cc engine variants, typically featuring robust, air-cooled twin-cylinder configurations and manual transmissions. The Dakota series embodies Gilera's commitment to quality engineering, providing riders with a capable and engaging machine. This comprehensive service repair workshop manual provides in-depth guidance for the Gilera Dakota ER 350 and 500. It covers all aspects of maintenance and repair, from routine periodic checks and adjustments to complex engine, transmission, chassis, and electrical system work. The manual includes detailed step-by-step instructions, exploded diagrams, and troubleshooting procedures to assist both professional mechanics and DIY enthusiasts. Its purpose is to empower users to maintain their vehicles effectively, ensuring optimal performance and longevity, and it is presented in English for broad accessibility.