The Aprilia Pegaso 650 Strada and Trail, produced in 1999, represent a versatile lightweight adventure motorcycle known for its blend of Italian design and reliable performance. Built on a steel trellis frame and powered by a liquid-cooled, single-cylinder Rotax-derived engine with electronic fuel injection, this model offers a distinct styling and a capable platform for both urban commuting and light off-road exploration. The Strada variant typically features cast wheels for on-road agility, while the Trail model is equipped with spoked wheels and enhanced suspension travel for greater off-road capability, making it a compelling choice for riders seeking a multi-purpose machine. This comprehensive factory service repair manual provides in-depth guidance for all aspects of the Aprilia Pegaso 650 Strada/Trail. It covers essential maintenance procedures, routine service intervals, and detailed instructions for major repairs, including engine diagnostics, fuel system servicing, electrical system troubleshooting, and chassis component overhauls. With clear explanations, technical data, and electrical diagrams, this manual is an indispensable resource for owners and technicians aiming to maintain, repair, and optimize their vehicle's performance and longevity.