This manual covers the FZS1000 FZ1 motorcycle models produced between 2001 and 2005. Known for its powerful liquid-cooled, 4-stroke, DOHC, 5-valve per cylinder inline-four engine with a 998 cc displacement, the FZS1000 FZ1 offers impressive performance, with approximately 130-140 PS at the crankshaft. Its heritage is rooted in a strong motorsports background, positioning it as a sporty naked bike that balances performance with versatility for both sport riding and touring. Key features include a 6-speed transmission, a wet, multiple-disc clutch, and a fuel injection system. The motorcycle is equipped with dual 298mm hydraulic disc brakes at the front and a 245mm hydraulic disc brake at the rear, with ABS available as an optional feature on some models. This comprehensive English-language Repair Service Shop Manual provides detailed instructions for all workshop procedures, enabling owners and technicians to perform routine maintenance, repairs, and diagnostics. It covers essential systems including the engine and powertrain, chassis and body, and the electrical system, complete with wiring diagrams. Specific maintenance procedures detailed include routine checks, fluid changes, filter replacements, and adjustments, along with step-by-step repair instructions and troubleshooting guidance for common issues. This manual is designed to be keyword searchable and bookmarked for easy navigation, offering the same level of information found in dealership service centers and empowering users to maintain their FZS1000 FZ1 effectively.