This document pertains to the 3AS and 4AS models, produced between 2004 and 2006. An Italian manufacturer with a strong racing heritage, is known for its performance-oriented motorcycles. The 3AS and 4AS engine series likely powered various models during this period, reflecting the brand's commitment to engineering quality and dynamic performance. This manual serves as an indispensable resource for understanding and maintaining these specific engines.

This workshop manual provides comprehensive coverage for the 3AS and 4AS engines, encompassing detailed engine repair and service procedures. It covers essential areas such as engine mechanical and electrical systems, fuel and cooling systems, lubrication, ignition, and exhaust systems. The manual includes step-by-step instructions for routine maintenance, diagnostics, troubleshooting, and complete engine overhauls, along with critical technical specifications like torque values and clearances. Its purpose is to empower owners, mechanics, and technicians with the necessary information to ensure the optimal performance, reliability, and longevity of their motorcycles.