The Yamaha Majesty 400 (YP400) is a premium maxi-scooter produced between 2004 and 2014, with this manual specifically covering the 2008-2012 model years. Engineered for comfort, performance, and practicality, it excels in the commuter and touring segments. Notable features include a fuel-efficient 395 cc liquid-cooled engine with electronic fuel injection, a monocoque frame for rigidity, ample under-seat storage, and comfortable ergonomics designed for extended rides. Its robust build quality and reliable engineering have contributed to high owner satisfaction, positioning it as a strong contender against competitors like the Suzuki Burgman 400.

This manual provides comprehensive guidance for both owners and technicians, encompassing a Service Manual and an Owner's Manual. It details essential maintenance procedures, including oil and filter changes, drive belt inspection, and valve clearance checks, alongside in-depth repair instructions for all major systems such as the engine, CVT transmission, chassis, brakes, and electrical components. Diagnostic flowcharts and troubleshooting tips are included to help identify and resolve common issues. Technical specifications, safety guidelines, and information on specific features like ABS and keyless ignition are also covered, ensuring the vehicle remains in optimal condition and its performance is maintained throughout its lifespan.