**Aprilia Tuono V4 2004 Service Repair Manual** This comprehensive service manual provides detailed instructions and repair information for the Aprilia Tuono V4 2004 motorcycle. It is designed to be used by technicians at dealerships and is an invaluable resource for anyone looking to maintain, service, diagnose, or repair their vehicle. The manual covers a wide range of topics, including: * **General Information:** Provides an overview of the motorcycle, its specifications, and safety procedures. * **Periodic Maintenance:** Outlines regular maintenance schedules and procedures, ensuring optimal performance and longevity. * **Engine:** Detailed information on the engine, including disassembly, assembly, repair, and troubleshooting. * **FI System Diagnosis:** Provides guidance on diagnosing and resolving issues with the fuel injection system. * **Fuel System and Throttle Body:** Covers the fuel system, throttle body, and related components. * **Exhaust System:** Explains the exhaust system, including repair and maintenance procedures. * **Cooling and Lubrication System:** Detailed information on the cooling and lubrication systems, including troubleshooting and repair. * **Chassis:** Covers the chassis, suspension, brakes, and other components. * **Electrical System:** Provides a comprehensive guide to the electrical system, including wiring diagrams and troubleshooting. * **Servicing Information:** Contains information on servicing procedures, including oil changes, filter replacements, and other essential maintenance tasks. * **Emission Control Information:** Details on the emission control system and its maintenance. * **Wiring Diagram:** Includes a detailed wiring diagram for easy troubleshooting. The manual features clear and concise instructions, accompanied by numerous illustrations and diagrams to assist in understanding repair procedures. This detailed resource allows you to perform a wide range of maintenance and repair tasks, saving you time and money.

The Aprilia Tuono V4, launched in 2004, was a revolutionary motorcycle that marked a significant departure from the traditional sportbike design. It was a naked, streetfighter-style machine that harnessed the powerful, race-bred engine of the RSV4, injecting raw power and aggressive styling into a new segment. The Tuono V4 took the heart of Aprilia's racing pedigree, the 998cc, 60° V4 engine, and stripped it of the fairings, creating a stunningly aggressive and minimalist design. This engine, renowned for its screaming high-revving nature and exhilarating power delivery, was tuned for strong low-end torque while maintaining its potent top-end performance. The Tuono V4 was the first motorcycle to offer this kind of power in a naked configuration, establishing a new benchmark in the streetfighter category. The Tuono V4's design was both bold and functional. The exposed frame, which also served as part of the fuel tank, showcased the technical brilliance of the machine. The minimalist bodywork, with its sharp lines and aggressive stance, was designed to maximize airflow and reduce drag, further enhancing the bike's performance. The Tuono V4's handling was equally impressive, thanks to its robust trellis frame, adjustable suspension, and radial-mount Brembo brakes. The motorcycle was lauded for its intuitive and responsive handling, making it a joy to ride both on winding roads and the open track. The Tuono V4's blend of raw power, aggressive styling, and precise handling cemented its position as a landmark motorcycle, paving the way for a new generation of streetfighters that prioritize performance and driver engagement. Its launch marked a shift in the streetfighter segment, pushing the boundaries of design and performance while delivering an unforgettable riding experience.