This comprehensive service and repair manual provides you with detailed instructions and illustrations to maintain and repair your Aprilia RS50 motorcycle, specifically for the 2001 model year. Dive into the intricate workings of your machine, gaining a deep understanding of all its components and systems. The manual is meticulously organized into chapters, each dedicated to a specific aspect of your RS50.

Begin with Chapter 1, where you'll find crucial information on serial numbers, safety precautions for handling fuels, lubricants, and other components, lubricant specifications, running-in instructions, warning label locations, spare part identification, technical data, lubrication chart, special tools required, torque wrench settings, and a glossary of abbreviations, symbols, and initials.

Chapter 2 offers a thorough servicing schedule, outlining routine maintenance tasks and their frequencies. It covers lubrication points, instrument and control layouts, battery maintenance (including checking, cleaning, removal, electrolyte level, recharging, and installation), spark plug inspection, air cleaner maintenance, throttle control adjustments, idling adjustments, carburetor controls, cold start lever operation, gearbox oil checks and changes, two-stroke oil tank management, coolant checks, brake fluid checks and changes, front and rear brake adjustments, clutch adjustments, shift lever adjustments, steering system checks, drive chain maintenance, routine servicing procedures, fuel line inspection, brake pipe/hose checks, cooling system hose inspections, two-stroke oil pipe/hose checks, and fastener tightening procedures.

Chapter 3 guides you through the process of dismantling and reassembling engine components that can be removed without dismounting the engine from the frame. It also provides detailed instructions for the complete engine removal process.

Chapter 4 delves into the fuel tank system, covering maintenance procedures, fuel feed checks, fuel valve removal, carburetor removal, and two-stroke oil tank removal. Chapter 5 deals with the radiator, providing instructions for removing the radiator and its filler cap.

Chapter 6 focuses on the electrical system, offering a detailed introduction to the RS50's electrical components, along with wiring diagrams and troubleshooting guides for various circuits including the ignition, charging, general power supply, starter, sensor, direction indicators, horn, braking lights, and headlights. You'll find instructions for replacing bulbs, adjusting headlight beams, changing fuses, and checking switches.

Chapter 7 concludes with detailed instructions for disassembly and reassembly of various components, covering the rider's saddle, passenger saddle, side fairings, fuel tank, air box, handlebars, electrical controls, clutch control, throttle control, stop switch, front brake control, ignition switch, steering lock, mirrors, front fairing, windshield, headlight, dashboard, instrument panel frame, front mudguard, front direction indicators, lower fairing, rear fairing, rear light, license plate holder, pillar cover, rear turn signals, rear mudguard, rear footrest supports, rear footrests, front footrest supports, front footrest, shift lever, brake pedal, exhaust pipe, muffler, side stand, chain guide, pillar, front wheel, front brake, brake pads, front brake master cylinder, brake disc, front fork, steering system, rear wheel, rear brake, rear brake pads, rear brake disc, rear brake master cylinder, rear suspension, drive chain, swing arm, and more.

This manual provides you with the knowledge and guidance necessary to confidently maintain and repair your Aprilia RS50, ensuring years of enjoyment and reliable performance.

## The Aprilia RS50: A Lightweight Legend

The Aprilia RS50, launched in 2001, is a high-performance, lightweight motorcycle designed to be a gateway to the world of racing. This compact, aggressive machine embodies the spirit of Italian design, with a sharp, aerodynamic fairing and a purposeful silhouette. The RS50 was built on a lightweight, tubular steel frame, and powered by a liquid-cooled, two-stroke single-cylinder engine displacing 49.9cc. This small displacement engine, revving to over 10,000 RPM, delivered a surprising amount of power, making the RS50 a true pocket rocket. It was renowned for its agility and responsiveness, making it a perfect choice for navigating tight corners and enjoying spirited rides on winding roads. The RS50's popularity was further bolstered by its racing heritage, with a dedicated version, the RS50 Replica, directly inspired by the Aprilia factory race machines. This variant sported even more aggressive race-inspired aesthetics and suspension components, making it a truly potent machine on the track.

The Aprilia RS50 was not simply a track-focused machine, however. Its practicality and user-friendliness made it a popular choice for commuters and everyday riders. The bike featured disc brakes on both wheels, offering strong stopping power, along with a comfortable riding position and a user-friendly gearbox. The RS50's affordability and low running costs made it an attractive option for young riders looking for their first motorcycle experience. Despite its small size, the RS50 was a capable and versatile machine, capable of handling a variety of riding conditions and appealing to a broad spectrum of riders. However, like any machine, the RS50 requires proper maintenance and care to ensure its continued performance and reliability. A Service Repair Manual is an essential tool for any owner looking to perform routine maintenance or tackle more complex repairs, ensuring the RS50 continues to perform at its peak for years to come.