The SM400R, produced for the 2007 and 2008 model years, is a performance-oriented supermoto motorcycle designed to blend off-road capability with agile street handling. Building on a rich heritage in off-road racing, this model offers a potent four-stroke, single-cylinder engine with an estimated displacement of 398 cc, delivering an estimated 35-45 horsepower. Its construction emphasizes a lightweight chassis, robust suspension, and powerful braking systems, making it a capable machine for both spirited riding and everyday use. The SM400R stands out for its focused design, prioritizing rider engagement and performance characteristics often compared to competitors like the DR-Z400SM. This comprehensive Service Repair Manual is your definitive guide to maintaining and repairing your SM400R. Covering a wide array of systems, including detailed procedures for the engine, transmission, chassis, and electrical components, this manual ensures you have the knowledge to keep your motorcycle in peak condition. It provides step-by-step instructions for routine maintenance, such as oil changes and filter replacements, as well as in-depth repair guidance for complex issues. Furthermore, this manual includes essential troubleshooting information, diagnostic procedures, and details on specialized tools, empowering owners and technicians to effectively service and preserve the integrity of the SM400R.