The Yamaha XS650SF XS650-2F 1979 Factory Service Repair Manual is a comprehensive guide designed to empower owners to maintain and repair their motorcycles with the same expertise as factory-trained technicians. This detailed manual provides step-by-step instructions covering all aspects of the motorcycle, ensuring that you have the knowledge to handle any repair or maintenance task. From understanding engine fault symptoms and researching the best repair approaches to testing parts and tracing complex wiring diagrams, this manual equips you with the confidence to tackle any challenge. It offers insights into various engine management systems, empowering you to communicate effectively with mechanics and ensure you receive the best service. You'll gain access to common fixes and troubleshooting tips, enabling you to identify and address issues before they escalate. The manual covers a wide range of topics, including: * **General Information:** Begin your journey with a solid foundation of essential information about your Yamaha XS650SF XS650-2F 1979. * **Fuel System:** Learn the intricacies of your motorcycle's fuel system, from understanding its components to performing necessary maintenance and repairs. * **Cooling System:** Gain expertise in maintaining and repairing your motorcycle's cooling system to ensure optimal temperature regulation. * **Engine Top End:** Master the intricacies of your engine's top end, including valves, camshafts, and other critical components. * **Clutch:** Understand the mechanics and operation of your motorcycle's clutch, enabling you to diagnose and resolve any issues. * **Engine Lubrication System:** Learn how to maintain and repair your engine's lubrication system to ensure smooth operation and extended engine life. * **Engine Removal/Installation:** Gain the knowledge and confidence to safely remove and reinstall your engine when necessary. * **Crankshaft/Transmission:** Dive deep into the heart of your motorcycle, learning about the crankshaft, transmission, and their critical role in power delivery. * **Wheels/Tires:** Master the maintenance and repair of your motorcycle's wheels and tires, ensuring optimal performance and safety. * **Final Drive:** Understand the function and maintenance of your motorcycle's final drive, which transmits power to the rear wheel. * **Brakes:** Gain expertise in maintaining and repairing your motorcycle's braking system, ensuring your safety on the road. * **Suspension:** Learn how to diagnose and repair issues within your motorcycle's suspension, ensuring a comfortable and controlled ride. * **Steering:** Understand the mechanics of your motorcycle's steering system and how to maintain its precision and responsiveness. * **Frame:** Learn about the structural integrity of your motorcycle's frame and how to address any potential issues. * **Electrical System:** Master the intricacies of your motorcycle's electrical system, from troubleshooting electrical problems to understanding wiring diagrams. * **Appendix:** Find a wealth of additional information, including specifications, diagrams, and troubleshooting guides to enhance your understanding. This manual goes beyond providing simple instructions; it offers insights into the design and operation of your motorcycle, equipping you with the knowledge to become a true expert. With its detailed illustrations, comprehensive instructions, and thorough troubleshooting guides, this manual is your ultimate resource for maintaining and repairing your Yamaha XS650SF XS650-2F 1979.

The Yamaha XS650SF and XS650-2F, produced in 1979, were iconic motorcycles that epitomized the era's love for classic, air-cooled, parallel-twin engines. These models were part of Yamaha's XS650 series, which spanned from 1970 to 1981 and garnered a reputation for reliability and performance. Both the XS650SF and XS650-2F were essentially the same motorcycle, with the key difference being their intended markets. The XS650SF was designed for the American market, while the XS650-2F was geared towards European buyers. These subtle differences manifested in details like headlight size, turn signal configuration, and the location of the speedometer. The Yamaha XS650SF and XS650-2F were powered by a 650cc, air-cooled, parallel-twin engine, renowned for its smooth torque delivery and reliable performance. The engine was mated to a five-speed transmission, providing adequate power for both city riding and highway cruising. Both models featured a traditional telescopic front fork and twin rear shocks, ensuring a comfortable ride. The XS650's distinctive design, featuring a classic teardrop fuel tank, low-slung seat, and chrome accents, made it a stylish choice for riders of all ages. Over the years, the XS650 has become a favorite among custom builders, with many using it as a blank canvas to create stunning cafe racers, bobbers, and scramblers. Today, the Yamaha XS650SF and XS650-2F hold a special place in motorcycle history, representing a period of innovation and style in the motorcycling world. Their timeless design and reliable performance continue to make them popular choices for riders seeking a classic and enjoyable experience.