This comprehensive service and repair manual provides detailed instructions for maintaining and repairing the Aprilia ROTAX Engine Type 655/97 655EFI. It is designed for both experienced mechanics and DIY enthusiasts, offering a wealth of information to ensure successful repairs. The manual covers a wide range of topics, including: * **Important Information:** Get acquainted with essential safety precautions, general maintenance practices, and important technical specifications. * **Technical Data:** Access detailed information on engine specifications, fluid capacities, torque settings, and other vital technical data. * **Engine Removal and Disassembly:** Learn the proper procedures for removing the engine from the motorcycle, disassembling its components, and inspecting individual parts. * **Engine Reassembly:** Detailed instructions guide you through the process of reassembling the engine, ensuring proper alignment, torquing, and component installation. * **Engine Timing:** Understand the critical aspects of engine timing, including setting valve clearances, adjusting camshafts, and ensuring proper ignition timing. The manual includes numerous illustrations, diagrams, and photographs to enhance understanding and simplify complex procedures. Clear and concise instructions, combined with detailed substeps and expanded explanations, make it easy to follow along at every stage of the repair process. In addition to mechanical repair information, the manual also covers troubleshooting and repair procedures for the engine's electrical system. Detailed wiring diagrams provide visual support, enabling you to diagnose and resolve electrical issues with confidence.

The Aprilia Rotax 655/97 655EFI engine is a powerful and technologically advanced powerplant that found its home in several of Aprilia's esteemed motorcycle models. This liquid-cooled, single-cylinder, four-stroke engine delivers a thrilling riding experience with its robust power delivery and impressive efficiency. The engine's compact design and lightweight construction contribute to its agility and responsiveness, making it ideal for both on-road and off-road adventures. The 655EFI variant of the Rotax 655/97 engine is equipped with a sophisticated electronic fuel injection system, ensuring optimal fuel efficiency and effortless starting in any condition. This cutting-edge technology also contributes to the engine's clean emissions, meeting modern environmental standards. The Aprilia Rotax 655/97 655EFI engine is renowned for its durability and reliability, a testament to Aprilia's engineering excellence. Its robust construction and high-quality components ensure long-lasting performance and minimal maintenance requirements. This engine is a testament to Aprilia's commitment to innovation and performance, offering riders a thrilling and rewarding experience on every journey. The service repair manual accompanying this engine provides a comprehensive guide for owners and mechanics alike, detailing every aspect of the engine's operation and maintenance. From basic troubleshooting to complex repairs, the manual equips users with the essential knowledge to keep their Aprilia Rotax 655/97 655EFI engine running at peak performance. This detailed resource ensures that owners can confidently maintain their machines and enjoy worry-free riding for years to come.