The Aprilia Pegaso 650, produced in 2005, is a versatile motorcycle designed for adventure touring and dual-sport riding. Featuring a liquid-cooled, single-cylinder, four-stroke engine with electronic fuel injection, it delivers approximately 48 horsepower and 57 Nm of torque. Its robust steel double cradle frame, long-travel suspension, and 19-inch front and 17-inch rear spoked wheels provide capability for both on-road commuting and light off-road excursions. With a fuel capacity of around 16 liters, the Pegaso 650 is engineered for riders seeking a dependable and adaptable machine for a variety of riding conditions. This comprehensive factory service manual provides detailed instructions for the maintenance, repair, and diagnostics of the Aprilia Pegaso 650. It covers all major systems, including the engine, fuel, ignition, cooling, transmission, suspension, brakes, and electrical systems. The manual includes procedures for routine maintenance, component disassembly and assembly, troubleshooting common issues, and rebuilding major parts, all supported by high-resolution diagrams and precise torque specifications. This resource is essential for owners, mechanics, and technicians to ensure the optimal performance and longevity of the vehicle.