The V990 Engine is a sophisticated liquid-cooled, four-stroke, 90-degree V-twin powerplant that powered a range of sportbikes and naked motorcycles from the late 1990s through the mid-2000s. Known for its robust engineering and performance focus, this engine typically displaces around 990cc and features DOHC with four valves per cylinder, delivering impressive horsepower and torque across a broad RPM range. Its design emphasizes a balance between the characteristic V-twin character and high-revving capability, making it a favored choice for enthusiasts seeking a potent and engaging riding experience.

This Service Repair Manual provides comprehensive guidance for the V990 Engine, covering all essential aspects of maintenance, diagnostics, and repair. Within its pages, you will find detailed procedures for engine mechanicals, fuel and ignition systems, lubrication, cooling, starting, and exhaust systems. The manual includes step-by-step instructions for disassembly, assembly, component replacement, and calibration, along with troubleshooting guides and diagnostic procedures for identifying and resolving common issues. Technical specifications, torque values, and information on special tools are also included to assist owners, mechanics, and technicians in maintaining and restoring the optimal performance of their V990 engines.