The Aprilia RS4 125 2013 Factory Service Repair Manual is a comprehensive guide for owners and mechanics alike, providing detailed instructions for maintaining and repairing this popular motorcycle. This official factory manual, not a third-party alternative, offers in-depth coverage of every aspect of the RS4 125, ensuring you have the knowledge and resources to perform a wide range of repairs and maintenance tasks. From basic servicing to complex engine overhauls, the manual guides you through each procedure with detailed, step-by-step instructions. It is packed with illustrations, diagrams, and specifications to ensure clarity and accuracy throughout. The manual covers topics like: * **General Information:** Learn about the RS4 125's design, specifications, and safety procedures. * **Fuel System:** Understand how the fuel system works, troubleshoot issues, and perform maintenance. * **Cooling System:** Learn about the cooling system, diagnose and repair leaks, and maintain its proper operation. * **Engine Top End:** Explore the engine's cylinder head, valves, and camshaft, including repair and maintenance procedures. * **Clutch:** Understand clutch operation, troubleshoot issues, and perform adjustments and replacements. * **Engine Lubrication System:** Learn about the lubrication system, diagnose and repair leaks, and maintain proper oil changes. * **Engine Removal and Installation:** Get detailed instructions for safely removing and installing the engine. * **Crankshaft and Transmission:** Explore these vital components, learn how they work, and understand repair procedures. * **Wheels and Tires:** Learn about tire types, sizes, and maintenance, as well as wheel repair and replacement. * **Final Drive:** Understand the final drive system, troubleshoot issues, and perform maintenance. * **Brakes:** Learn about the braking system, diagnose and repair issues, and perform maintenance. * **Suspension:** Explore the suspension system, diagnose and repair issues, and perform adjustments and maintenance. * **Steering:** Understand the steering system, diagnose and repair issues, and perform adjustments and maintenance. * **Frame:** Learn about the frame, inspect for damage, and understand repair procedures. * **Electrical System:** Explore the RS4 125's electrical system, troubleshoot issues, and perform repairs and maintenance. * **Appendix:** Contains additional information, such as wiring diagrams, torque specifications, and technical data. This manual serves as an invaluable resource for anyone who wants to perform maintenance or repairs on their Aprilia RS4 125. With its comprehensive coverage, clear instructions, and detailed illustrations, the manual empowers you to tackle any project with confidence.

The Aprilia RS4 125, launched in 2013, embodies the Italian brand's commitment to crafting sporty and accessible motorcycles for young riders. This lightweight, single-cylinder machine is a testament to Aprilia's racing heritage, featuring sharp, aggressive styling reminiscent of their larger displacement race bikes. The RS4 125 boasts a sleek, aerodynamic fairing that not only enhances its aesthetic appeal but also contributes to improved wind protection and stability at higher speeds. Its low seat height, narrow chassis, and lightweight construction make it incredibly agile and responsive, making it a joy to ride both on the road and on the track. The RS4 125 is powered by a liquid-cooled, single-cylinder 125cc engine, which produces a respectable amount of power for its class. This engine is paired with a 6-speed gearbox, allowing riders to fully exploit its potential across a wide range of riding conditions. The Aprilia RS4 125 is more than just a stylish entry-level motorcycle; it's a true performance machine that offers an exciting and engaging riding experience. It is equipped with high-quality components such as upside-down forks and a monoshock rear suspension, providing exceptional handling and stability. The powerful brakes ensure confident stopping power, while the ergonomic design of the RS4 125 allows riders to maintain a comfortable riding position for extended periods. The RS4 125 is a fantastic choice for anyone looking for a sporty and affordable motorcycle that is easy to handle and capable of delivering a thrilling ride. Its combination of performance, styling, and practicality makes it an ideal machine for both beginner and experienced riders alike.