The Yamaha FZ1, including its FZ1N (naked), FZ1S (faired), and FZ1SA (faired with ABS) variants, represents a significant offering in the hyper-sport motorcycle segment from 2007 through 2012. Engineered with renowned precision, this model draws power from a potent 998cc inline-four engine, a derivative of the R1 superbike platform, tuned for exceptional torque delivery across a broad RPM range. Its versatility is a key selling point, offering distinct styling and aerodynamic profiles to suit various riding preferences, from aggressive street riding to comfortable sport touring. The FZ1 is recognized for its robust engineering, reliability, and a balanced blend of performance and everyday usability, making it a distinguished choice for discerning riders. This comprehensive workshop service manual provides in-depth guidance for the maintenance, repair, and troubleshooting of all Yamaha FZ1 models produced between 2007 and 2012. Covering a vast array of systems, including the engine, fuel injection, transmission, braking, suspension, and electrical components, this manual offers detailed procedures, diagnostic flowcharts, and critical technical specifications. It is an essential resource for owners, professional technicians, and mechanics, ensuring that the FZ1 can be kept in optimal condition. The manual facilitates everything from routine servicing and component rebuilds to advanced electrical diagnostics and ABS system troubleshooting, empowering users to maintain the integrity and performance of their motorcycle.