This comprehensive Aprilia ROTAX engine type 655 1992 Factory Service Repair Manual is your ultimate guide to maintaining and repairing your engine. It provides detailed, step-by-step instructions and illustrations, allowing you to understand the intricacies of your engine's workings and perform repairs with confidence. The manual covers a wide range of topics, including: **Engine Identification & General Precautions:** Start your journey with a thorough understanding of your engine's unique features and safety guidelines. **Maintenance Checklist & Check & Maintenance:** Regular maintenance is key to keeping your engine running smoothly. This manual provides a comprehensive checklist and detailed instructions for routine checks and maintenance procedures. **Special Tools:** Learn about the specialized tools required for specific tasks, ensuring you have the right equipment for the job. **Engine Body:** Explore the internal workings of your engine, understanding its components and how they function together. **Fuel System:** This section covers everything from fuel lines to injectors, providing insights into the fuel delivery system and how to troubleshoot any issues. **Troubleshooting:** Equipped with a wealth of information, this manual guides you through diagnosing and resolving common engine problems. **Servicing Specifications & Tightening Torques:** Find all the necessary specifications and tightening torques for different components, ensuring you perform repairs correctly. **Disassembling and Servicing:** This detailed section provides step-by-step instructions for disassembling, servicing, and reassembling various engine components. **Cooling System:** Learn about the vital role of the cooling system in maintaining optimal engine temperature and how to address any cooling-related issues. **Fuel Filter:** Proper fuel filtration is crucial for engine performance. This section guides you through the process of inspecting and replacing the fuel filter. **Electrical System, Alternator & Regulator:** Dive into the complexities of your engine's electrical system, covering essential components like the alternator and regulator. This manual is an invaluable resource for any owner or mechanic looking to service, repair, or rebuild their Aprilia ROTAX engine type 655 1992. With its clear instructions, detailed illustrations, and comprehensive coverage of essential topics, this manual empowers you to take control of your engine's well-being.

## The Aprilia Rotax 655: A Powerhouse of the 90s The Aprilia Rotax 655, a liquid-cooled, two-stroke, 654cc engine, was a force to be reckoned with in the 1992 motorcycle scene. Designed and manufactured by Rotax, a renowned Austrian engine manufacturer, this powerplant found its home in a variety of Aprilia models, notably the RS250 and the AF1 Falco. The engine's unique design, featuring a 70° V-twin configuration, provided a balance of power and agility that captivated riders. The Rotax 655's strengths lay in its performance, boasting a power output of around 85 horsepower, delivering a thrilling riding experience. Its lightweight design and compact size contributed to its agility on the track, making it a favorite among racers. The engine's durability and robust construction ensured it could handle the demanding conditions of both track and road use. However, the Rotax 655's two-stroke nature meant it required specific maintenance, including regular oil changes and meticulous cleaning of the exhaust system. This, coupled with its age, has unfortunately led to the engine becoming less common these days.