The Aprilia RS4 125 4T 2011-2014 Service Repair Manual is your comprehensive guide to maintaining and repairing your motorcycle. This detailed manual covers all aspects of the RS4 125 4T, from basic maintenance procedures to complex engine repairs.

You'll find step-by-step instructions for a wide range of tasks, including:

* **General Information:** Get acquainted with your Aprilia RS4 125 4T, including its specifications, safety precautions, and maintenance schedules.
* **Fuel System:** Learn about the intricacies of the fuel system, covering topics like fuel injection, carburetor adjustments, and troubleshooting fuel-related issues.
* **Cooling System:** Understand how the cooling system works and learn how to maintain and repair components like the radiator, water pump, and thermostat.
* **Engine Top End:** Get detailed guidance on inspecting and servicing the engine's top end, including the cylinder head, valves, camshaft, and pistons.
* **Clutch:** Discover the workings of the clutch system, covering adjustments, replacement procedures, and troubleshooting common clutch problems.
* **Engine Lubrication System:** Learn how to maintain the engine's lubrication system, including oil changes, filter replacement, and addressing oil leaks.
* **Engine Removal/Installation:** Find detailed instructions for safely removing and reinstalling the engine, a crucial step for major repairs.
* **Crankshaft/Transmission:** Explore the inner workings of the crankshaft and transmission, covering inspection, repair, and common issues.
* **Wheels/Tires:** Learn how to maintain and repair your wheels and tires, including tire changes, balancing, and wheel bearing replacement.
* **Final Drive:** Get guidance on understanding and maintaining the final drive system, which transmits power from the engine to the rear wheel.
* **Brakes:** Master the art of maintaining and repairing your brakes, covering brake pads, calipers, rotors, and master cylinders.
* **Suspension:** Discover the intricacies of your motorcycle's suspension system, covering front forks, rear shocks, and adjustments for optimal handling.
* **Steering:** Learn how the steering system works, covering components like the steering head, handlebars, and steering bearings.
* **Frame:** Understand the frame's role in the motorcycle's structure and learn how to inspect, repair, and address any frame-related issues.
* **Electrical System:** Get a comprehensive understanding of the electrical system, including wiring diagrams, troubleshooting electrical faults, and replacing components like the battery and starter.
* **Appendix:** Find additional information, such as torque specifications, electrical wiring diagrams, and troubleshooting charts.

The Aprilia RS4 125 4T 2011-2014 Service Repair Manual is your go-to resource for keeping your motorcycle in top condition. With its detailed instructions, numerous illustrations, and easy-to-follow format, you'll be empowered to tackle any repair or maintenance task with confidence.

The Aprilia RS4 125 4T, produced from 2011 to 2014, is a sporty and agile 125cc motorcycle designed for young riders seeking an exhilarating entry into the world of motorcycling. This compact and lightweight machine boasts a sleek and aggressive design, with sharp lines and a low-slung profile that evokes the spirit of its larger, more powerful siblings. The RS4 125 4T is powered by a liquid-cooled, single-cylinder, four-stroke engine, delivering a healthy blend of performance and fuel efficiency. Its nimble handling, thanks to a lightweight tubular steel frame and adjustable suspension, makes it a joy to ride on twisty roads and track days alike.

This Aprilia model features a range of rider-focused features, including a digital instrument panel displaying essential information, a comfortable rider seat, and responsive brakes for confident control. The RS4 125 4T is not only a stylish and capable machine but also a versatile choice for commuting, weekend adventures, and even competitive racing. Its user-friendly nature and accessible power output make it an ideal choice for new riders eager to experience the thrill of riding a motorcycle, while its performance potential and sporty aesthetic also appeal to more experienced riders seeking a compact and nimble machine. The RS4 125 4T represents a compelling entry point into the world of motorcycling, offering a blend of style, performance, and affordability that makes it a popular choice among riders of all levels.