The Ninja 250R, specifically the EX250J model manufactured between 2008 and 2012, represents a commitment to providing an accessible and engaging sportbike experience. This motorcycle is engineered for new riders and those seeking an economical yet stylish option for commuting or recreational riding. Its design draws inspiration from larger Ninja sportbikes, featuring a full fairing that enhances its aerodynamic profile and sporty aesthetics. The Ninja 250R is powered by a liquid-cooled, parallel-twin engine with digital fuel injection, offering a balanced blend of performance and fuel efficiency, making it a popular choice in the entry-level sportbike segment. This comprehensive repair service manual serves as an essential guide for the maintenance and repair of your Ninja 250R (EX250J) from 2008-2012. It covers a wide array of critical systems, including detailed procedures for the engine, transmission, chassis, and electrical systems. The manual provides in-depth information on routine maintenance, troubleshooting common issues, and complete repair or overhaul procedures. With technical specifications, diagnostic flowcharts, and torque values, this English-language manual equips owners and technicians with the knowledge necessary to ensure the optimal performance, reliability, and longevity of their motorcycle.