The Suzuki DR650S is a versatile dual-sport motorcycle renowned for its robust 641cc air-cooled engine, reliable performance, and adaptability for both on-road and light off-road use. Produced for the 1990 and 1991 model years, including variants SL and SM, this model builds on Suzuki's heritage of producing durable and capable machines. Its mechanical simplicity, combined with a strong chassis and capable suspension, makes it a favored choice for riders seeking adventure and everyday utility. The DR650S is engineered for longevity and ease of maintenance, solidifying its reputation as a dependable companion for various riding conditions.

This comprehensive service and repair manual provides detailed information for the 1990-1991 Suzuki DR650S, DR650SL, and DR650SM. It covers all essential systems, including engine, fuel, ignition, electrical, drivetrain, suspension, braking, and bodywork. The manual offers step-by-step instructions for routine maintenance, troubleshooting common issues, and performing major overhauls. With detailed diagrams, technical specifications, and diagnostic procedures, this guide is an indispensable resource for owners, mechanics, and technicians aiming to maintain the optimal performance and longevity of their DR650S.