This comprehensive Aprilia ROTAX engine type 122 1996 Factory Service Repair Manual is your essential guide to maintaining and repairing your motorcycle engine. This official, factory-issued manual provides detailed instructions and illustrations, ensuring you have the same information used by professional technicians. From basic maintenance checks to intricate repair procedures, this manual covers everything you need to keep your Aprilia ROTAX engine type 122 running smoothly. Dive into the intricacies of your engine with clear explanations and step-by-step instructions, allowing you to perform repairs with confidence. This manual is your ultimate resource for understanding the inner workings of your motorcycle engine, including: * Engine Identification: Clearly understand the specific components and features of your Aprilia ROTAX engine type 122. * General Precautions: Learn essential safety guidelines and best practices when working on your motorcycle. * Maintenance Checklist: Stay on top of routine maintenance tasks for optimal engine performance. * Check and Maintenance: Comprehensive guides for regular inspections and adjustments. * Special Tools: Identify the specialized tools required for specific maintenance and repair procedures. * Engine Body: Detailed breakdowns of the engine's core components, from the crankshaft to the cylinder head. * Fuel System: In-depth coverage of the fuel system, including the carburetor, fuel lines, and fuel pump. * Troubleshooting: Expert advice and solutions for diagnosing and resolving common engine issues. * Servicing Specifications: Precise measurements and tolerances for various engine components. * Tightening Torques: The correct torque values for every bolt and nut, ensuring proper assembly and preventing damage. * Disassembling and Servicing: Step-by-step instructions for disassembling, inspecting, and reassembling major engine components. * Cooling System: Detailed explanations of the cooling system, including the radiator, fan, and coolant. * Fuel Filter: Information on inspecting, replacing, and maintaining the fuel filter. * Electrical System: Comprehensive coverage of the electrical system, including wiring diagrams, troubleshooting, and repair procedures. * Alternator: Instructions for inspecting, testing, and replacing the alternator. * Regulator: Guides for diagnosing and repairing the voltage regulator. With this manual, you have access to a wealth of information that will empower you to maintain and repair your Aprilia ROTAX engine type 122 with confidence.

The Aprilia Rotax 122 engine, introduced in 1996, is a powerful and highly regarded powerplant that found its way into several popular Aprilia motorcycles. This liquid-cooled, two-stroke, single-cylinder engine boasts a displacement of 124cc, making it a compact but potent force. Known for its impressive power-to-weight ratio and exceptional performance, the Rotax 122 became synonymous with the thrill of riding Aprilia's iconic models like the RS125, AF1 125, and the SX 125. It utilized a reed valve induction system for efficient airflow and a rotary valve exhaust for maximized performance, creating a distinct and characteristic two-stroke sound. The engine featured a six-speed transmission, enabling riders to fully exploit its power across a wide range of speed and terrain. The Rotax 122 engine was not without its quirks. Being a two-stroke, it required regular maintenance, including frequent oil changes and pre-mixing fuel with oil. However, its robust construction and reliable performance made it a popular choice among riders and tuners. For serious performance enthusiasts, the Rotax 122's inherent tuning potential allowed for significant power enhancements through various modifications, including exhaust upgrades, performance pistons, and reed valve tuning. The engine's enduring popularity can be attributed to its combination of power, weight efficiency, and aftermarket support, making it a highly sought-after engine, even today, for both road and track applications.