The Cagiva N90 is a motorcycle from the first generation, produced between 1990 and 1992. This model, a sportbike or naked sportbike, embodies distinctive Italian styling with sharp lines and often featured performance-oriented chassis and engines. Designed for spirited riding, it balances street usability with track-day potential, competing in its era against established Japanese sportbike manufacturers. The N90 is powered by a liquid-cooled, two-stroke, parallel-twin engine with a displacement of approximately 89.5 cc, delivering estimated horsepower and torque figures suitable for its class. Its engineering prioritizes a lightweight and agile riding experience, characteristic of Cagiva's approach to smaller displacement performance machines.

This comprehensive service and repair manual provides detailed information for the Cagiva N90 motorcycle. It covers a wide range of systems, including engine disassembly and assembly, fuel and ignition systems, transmission, clutch, drivetrain, chassis, suspension, steering, braking systems, and the electrical system. The manual also details routine maintenance procedures, troubleshooting diagnostics for common issues, and component overhaul instructions. Essential technical specifications, such as torque values, fluid capacities, and clearances, are included to aid in accurate maintenance and repair. This resource is designed to assist owners, mechanics, and technicians in maintaining the optimal performance and longevity of their Cagiva N90.