He won his first Grand Prix race for Morbidelli at the 1975 125cc Spanish Grand Prix then went on to win the next six races to clinch the 125cc world championship. Later on his career, he took one 250cc victory in the 1978 250cc Belgian Grand Prix.
He claimed his inaugural Grand Prix success with Morbidelli at the 1975 125cc Spanish Grand Prix and then went on to dominate the next six events to secure the 125cc world championship. Subsequently, he secured one notable 250cc victory in the 1978 250cc Belgian Grand Prix.