This manual covers the 1990 Cagiva N90, a compact and utilitarian motorcycle designed for commuting and general use. As an Italian manufacturer, Cagiva has a reputation for producing a range of motorcycles, and the N90 likely represented their offering in the competitive small-capacity segment of the European market during the late 1980s and early 1990s. Its design philosophy focused on reliability, ease of maintenance, and practical performance, making it a sensible choice for riders seeking an affordable and dependable machine. The N90 typically features a 4-stroke, air-cooled, single-cylinder engine, a 5-speed manual transmission, and a chain drive, embodying a straightforward and robust mechanical package.

The purpose of this workshop service and repair manual is to provide comprehensive guidance for maintaining and repairing the 1990 Cagiva N90. It covers essential areas including engine overhaul, tuning, lubrication, fuel and ignition systems, transmission maintenance and repair, chassis components, brake systems, and electrical diagnostics. The manual also details routine maintenance procedures, troubleshooting common issues, and provides step-by-step repair instructions with clear diagrams and specifications. This resource is intended for both DIY enthusiasts and professional technicians, enabling them to effectively service and preserve the longevity and performance of their Cagiva N90 motorcycle.