This is a comprehensive service and repair workshop manual specifically designed for the Aprilia Tuono V990, covering model years 2002 through 2005. This manual is the same one used by mechanics worldwide, providing detailed instructions for maintaining and repairing your motorcycle. Within its pages, you'll find step-by-step instructions, clear diagrams, illustrations, wiring schematics, and detailed specifications to help you troubleshoot and repair your Aprilia Tuono V990. It covers a wide range of topics, including engine identification, general safety precautions, maintenance checklists, basic check-ups and maintenance procedures, essential tools, engine body disassembly and servicing, fuel system troubleshooting, cooling system repair, fuel filter replacement, and a detailed guide to the electrical system, including the alternator and regulator. This manual is designed for both motorcycle owners with basic mechanical skills and independent service professionals. It provides the same information and procedures used by authorized dealers, allowing you to confidently tackle a variety of repairs and maintenance tasks. The clear and concise text, combined with informative illustrations, makes it easy to understand and follow even for those with limited experience.

The Aprilia Tuono V990, produced from 2002 to 2005, is a naked sport motorcycle that stands as a testament to Aprilia's dedication to performance and style. Powered by a 998cc, 90-degree V-twin engine, the Tuono V990 delivers a thrilling ride with its aggressive, raw power. Derived from the iconic RSV Mille superbike, the Tuono V990 borrows its engine and chassis, but sheds the fairings to offer a more engaging and visceral riding experience. This streetfighter design is characterized by its aggressive styling, with a sculpted fuel tank, a high-mounted exhaust, and a distinct, exposed trellis frame. The Tuono V990's focus on rider involvement is evident in its accessible riding position, which blends sporty ergonomics with a comfortable enough setup for everyday riding. Beyond its aesthetics, the Tuono V990 boasts a robust and well-engineered package. Its liquid-cooled, 90-degree V-twin engine produces a claimed 125 horsepower and 79 lb-ft of torque, making for exhilarating acceleration and strong midrange performance. The bike's aluminum frame and adjustable suspension (Showa forks and an Sachs rear shock) deliver precise handling and impressive stability, making it equally adept at carving corners and tackling winding roads. The Tuono V990's braking system, featuring twin 320mm discs with Brembo calipers, provides strong stopping power and confidence-inspiring control. With its striking looks, potent performance, and focused riding character, the Aprilia Tuono V990 carved a niche for itself as a thrilling and uncompromising naked sportbike, offering a captivating blend of raw power and streetfighter attitude.