The Z750 (ZR750J, third generation) is a naked sportbike designed for riders seeking accessible performance and everyday usability. Produced from 2007 to 2010, this middleweight machine features an aggressive styling philosophy, a potent liquid-cooled, 750 cc inline-four engine delivering approximately 104 hp, and a robust high-tensile steel backbone frame. Its engineering prioritizes a balance of sporty handling, a comfortable riding position, and practical versatility, making it suitable for commuting, spirited riding, and touring. Building on a rich heritage in the Z series, the Z750 offers a compelling package in its segment, often praised for its strong engine characteristics and value. This comprehensive Workshop Service Manual provides detailed guidance for the maintenance, repair, and troubleshooting of the Z750 (ZR750J) models from 2007 to 2010. Covering a vast array of systems, including engine mechanicals, fuel injection, cooling, exhaust, ignition, transmission, suspension, brakes, wheels, and electrical systems, this 677-page English-language manual is an essential resource. It offers in-depth procedures for routine maintenance, engine overhauls, fuel system service, suspension rebuilds, brake system repairs, and electrical diagnostics, complete with critical torque specifications and clearances. The manual is designed to assist owners, mechanics, and technicians in ensuring the optimal performance, reliability, and longevity of their Z750.