This manual provides comprehensive service and repair information for the motocross bike, covering model years 2000 through 2002, including models YZ426L, YZ426F(M), YZ426F(N), and YZ426F(P). Engineered with a 4-stroke, liquid-cooled, single-cylinder engine featuring a 426 cc displacement, the YZ426F represents a significant development in motocross lineage, building upon its rich motorsport heritage. Known for its robust construction and performance-oriented design, this machine is built for demanding off-road competition.

This Service Repair Manual is meticulously detailed to assist owners, mechanics, and technicians in maintaining and repairing the YZ426F. It covers all major systems, including complete engine and transmission disassembly/reassembly, chassis components, suspension, braking systems, and electrical systems, supported by hundreds of high-quality illustrations and detailed diagrams. The manual includes systematic troubleshooting guides, scheduled maintenance procedures, and technical specifications, enabling efficient and accurate servicing to ensure optimal performance and longevity.