This manual covers the Suzuki Quad Sport Z400, second generation, produced from 2008 to 2012. Engineered for performance and reliability, this ATV features a 398 cc, 4-stroke, liquid-cooled engine with a 4-valve DOHC design and a Mikuni BSR36 carburetor. Its robust chassis includes independent double A-arm front suspension and a monoshock rear swingarm, providing 215 mm and 230 mm of travel respectively. The Quad Sport Z400 is equipped with dual hydraulic disc brakes at the front and a single hydraulic disc at the rear, offering strong stopping power for demanding terrain. This Workshop Repair Service Manual, in English, provides comprehensive guidance for the maintenance and repair of your Suzuki Quad Sport Z400. It details essential procedures, including engine oil specifications and capacities, coolant capacity, and tire pressure settings. Technical specifications for the engine, transmission, dimensions, suspension, and braking systems are clearly outlined. This resource is designed to assist owners, mechanics, and technicians in understanding the vehicle's operation, performing routine maintenance, and executing repairs effectively to ensure optimal performance and longevity.