This service repair manual covers the Aprilia ROTAX Engine Type 120, 154, and 177. These engines are known for their robust engineering and reliable performance, designed to meet the demands of various applications. This manual provides comprehensive information to ensure optimal operation and longevity of your Aprilia ROTAX engine.

The purpose of this manual is to serve as a complete guide for service and repair. It includes detailed procedures, high-quality diagrams, and essential technical specifications. Owners, mechanics, and technicians will find the information within invaluable for routine maintenance, troubleshooting complex issues, and performing necessary repairs, ensuring the engine remains in peak condition.