The Cagiva T4-500, produced in 1987, is a versatile dual-sport motorcycle, embodying Italian design and a focus on robustness for both on-road touring and capable off-road performance. With its single-cylinder, four-stroke engine displacing approximately 478 cc and an estimated 30-35 horsepower, it offers a balanced blend of power and manageable handling. This model was a key player in the adventure motorcycle segment during its production era, appealing to riders who valued a machine that could reliably tackle diverse terrains. Its design philosophy emphasized durability and a distinctive aesthetic, setting it apart from competitors like the Honda Transalp and Yamaha Tenere of the period. This comprehensive factory service repair manual provides essential information for the maintenance, troubleshooting, and repair of your Cagiva T4-500. Covering all major systems, including detailed procedures for the engine, fuel, ignition, transmission, suspension, brakes, and electrical systems, this guide is designed for both professional mechanics and DIY enthusiasts. It offers step-by-step instructions for disassembly, assembly, adjustments, and routine maintenance, along with diagnostic guidance for common issues. By utilizing the detailed technical specifications and repair instructions within this manual, owners and technicians can ensure the optimal performance and longevity of their 1987 Cagiva T4-500.