The Aprilia Pegaso 650 Strada Trail, produced in 1997, represents a versatile dual-purpose motorcycle from an Italian manufacturer renowned for its performance-oriented vehicles. This model offers a blend of on-road agility and off-road capability, characteristic of the Pegaso lineage. Its engineering focuses on reliability and user experience, providing riders with a capable machine for both daily commuting and adventurous excursions. The 650cc single-cylinder, liquid-cooled engine, coupled with a 5-speed manual transmission and a robust chassis featuring a telescopic front fork and rear monoshock suspension, forms the core of its dependable performance. This Service Repair Manual provides comprehensive and detailed instructions for the maintenance, diagnosis, and repair of the 1997 Aprilia Pegaso 650 Strada Trail. It covers all essential systems, including engine disassembly and assembly, fuel injection, chassis components, front and rear brake systems, and the complete electrical system with wiring diagrams. The manual includes step-by-step procedures, technical data, lubricant specifications, tightening torques, fluid capacities, and guidance on special tools, making it an invaluable resource for owners and technicians seeking to maintain the vehicle's optimal performance and longevity.