This manual covers the 350 series motorcycles, specifically models 638, 639, and 640, produced between 2004 and 2005. , a historic Czechoslovakian manufacturer, is renowned for its robust, reliable, and straightforward two-stroke parallel-twin motorcycles. The 350 series, characterized by its distinctive styling and enduring design, has been a popular choice in various markets, valued for its simplicity and ease of maintenance. These models represent an evolution of a long-standing lineage, offering a unique riding experience rooted in decades of engineering heritage.

This comprehensive Service and Repair Manual is designed to assist owners and technicians in maintaining and repairing their 350 motorcycles. It provides detailed information across a wide range of systems, including engine diagnostics and overhaul, transmission and clutch servicing, fuel and ignition system maintenance, electrical troubleshooting, suspension and brake system procedures, and frame and bodywork. The manual includes routine maintenance schedules, troubleshooting guides, component rebuild instructions, and essential technical specifications, all presented to facilitate effective and accurate service.

This manual covers the 350 series motorcycles, specifically models 638, 639, and 640, produced between 2004 and 2005. , a historic Czechoslovakian manufacturer, is renowned for its robust, reliable, and straightforward two-stroke parallel-twin motorcycles. The 350 series, characterized by its distinctive styling and enduring design, has been a popular choice in various markets, valued for its simplicity and ease of maintenance. These models represent an evolution of a long-standing lineage, offering a unique riding experience rooted in decades of engineering heritage.

This comprehensive Service and Repair Manual is designed to assist owners and technicians in maintaining and repairing their 350 motorcycles. It provides detailed information across a wide range of systems, including engine diagnostics and overhaul, transmission and clutch servicing, fuel and ignition system maintenance, electrical troubleshooting, suspension and brake system procedures, and frame and bodywork. The manual includes routine maintenance schedules, troubleshooting guides, component rebuild instructions, and essential technical specifications, all presented to facilitate effective and accurate service.