| 1974 | Finnish Grand Prix · Grand Prix | Yamaha | 9 | | Classified |
| 1976 | French Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1976 | Austrian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1976 | Nations Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1976 | Dutch TT · Grand Prix | Suzuki | — | | Ret |
| 1976 | Belgian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1976 | Swedish Grand Prix · Grand Prix | Suzuki | 6 | | Classified |
| 1976 | Finnish Grand Prix · Grand Prix | Suzuki | 3 | | Classified |
| 1976 | Czechoslovak Grand Prix · Grand Prix | Suzuki | 3 | | Classified |
| 1976 | German Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1977 | Venezuelan Grand Prix · Grand Prix | Suzuki | 5 | | Classified |
| 1977 | Austrian Grand Prix · Grand Prix | Suzuki | — | | DNS |
| 1977 | German Grand Prix · Grand Prix | Suzuki | 5 | | Classified |
| 1977 | Nations Grand Prix · Grand Prix | Suzuki | 6 | | Classified |
| 1977 | French Grand Prix · Grand Prix | Suzuki | 5 | | Classified |
| 1977 | Dutch TT · Grand Prix | Suzuki | 4 | | Classified |
| 1977 | Belgian Grand Prix · Grand Prix | Suzuki | 6 | | Classified |
| 1977 | Swedish Grand Prix · Grand Prix | Suzuki | — | | DNS |
| 1978 | Spanish Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1978 | Austrian Grand Prix · Grand Prix | Suzuki | 11 | | Classified |
| 1978 | French Grand Prix · Grand Prix | Suzuki | 20 | | Classified |
| 1978 | Nations Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1978 | Dutch TT · Grand Prix | Suzuki | 11 | | Classified |
| 1978 | Belgian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1978 | Swedish Grand Prix · Grand Prix | Suzuki | 9 | | Classified |
| 1978 | British Grand Prix · Grand Prix | Suzuki | 16 | | Classified |
| 1978 | German Grand Prix · Grand Prix | Suzuki | 20 | | Classified |
| 1979 | Austrian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1979 | German Grand Prix · Grand Prix | Suzuki | 5 | | Classified |
| 1979 | Nations Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1979 | Spanish Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1979 | Yugoslavian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1979 | Dutch TT · Grand Prix | Suzuki | 5 | | Classified |
| 1979 | Belgian Grand Prix · Grand Prix | Suzuki | — | | DNS |
| 1979 | Swedish Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1979 | Finnish Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1979 | British Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1979 | French Grand Prix · Grand Prix | Suzuki | 6 | | Classified |
| 1980 | Nations Grand Prix · Grand Prix | Suzuki | 9 | | Classified |
| 1980 | Spanish Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1980 | French Grand Prix · Grand Prix | Suzuki | 16 | | Classified |
| 1980 | Dutch TT · Grand Prix | Suzuki | — | | Ret |
| 1980 | Belgian Grand Prix · Grand Prix | Suzuki | 11 | | Classified |
| 1980 | Finnish Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1980 | British Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1980 | German Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1981 | Großer Preis von Österreich · Grand Prix | Suzuki | 11 | | Classified |
| 1981 | Großer Preis von Deutschland · Grand Prix | Suzuki | 12 | | Classified |
| 1981 | Gran Premio delle Nazioni · Grand Prix | Suzuki | — | | Ret |
| 1981 | Grand Prix de France Moto · Grand Prix | Suzuki | — | | Ret |
| 1981 | Yu Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1981 | Dutch TT Assen · Grand Prix | Suzuki | 15 | | Classified |
| 1981 | Grand Prix Moto · Grand Prix | Suzuki | 27 | | Classified |
| 1981 | Gran Premio di San Marino · Grand Prix | Suzuki | — | | Ret |
| 1981 | Marlboro British Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1981 | Finnish GP · Grand Prix | Suzuki | 15 | | Classified |
| 1981 | Swedish TT · Grand Prix | Suzuki | 17 | | Classified |
| 1982 | Argentine Grand Prix · Grand Prix | Suzuki | 15 | | Classified |
| 1982 | Austrian Grand Prix · Grand Prix | Suzuki | 13 | | Classified |
| 1982 | French Grand Prix · Grand Prix | Suzuki | 10 | | Classified |
| 1982 | Spanish Grand Prix · Grand Prix | Suzuki | 12 | | Classified |
| 1982 | Nations Grand Prix · Grand Prix | Suzuki | 12 | | Classified |
| 1982 | Dutch TT · Grand Prix | Suzuki | — | | Ret |
| 1982 | Belgian Grand Prix · Grand Prix | Suzuki | 15 | | Classified |
| 1982 | Yugoslavian Grand Prix · Grand Prix | Suzuki | 14 | | Classified |
| 1982 | British Grand Prix · Grand Prix | Suzuki | 20 | | Classified |
| 1982 | Swedish Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1982 | San Marino Grand Prix · Grand Prix | Suzuki | 13 | | Classified |
| 1982 | German Grand Prix · Grand Prix | Suzuki | 9 | | Classified |
| 1983 | South African Grand Prix · Grand Prix | Suzuki | — | | DNQ |
| 1983 | French Grand Prix · Grand Prix | Suzuki | 12 | | Classified |
| 1983 | Nations Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1983 | German Grand Prix · Grand Prix | Suzuki | 23 | | Classified |
| 1983 | Spanish Grand Prix · Grand Prix | Suzuki | 17 | | Classified |
| 1983 | Austrian Grand Prix · Grand Prix | Suzuki | 16 | | Classified |
| 1983 | Yugoslavian Grand Prix · Grand Prix | Suzuki | 14 | | Classified |
| 1983 | Dutch TT · Grand Prix | Suzuki | 18 | | Classified |
| 1983 | Belgian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1983 | British Grand Prix · Grand Prix | Suzuki | 24 | | Classified |
| 1983 | Swedish Grand Prix · Grand Prix | Suzuki | 19 | | Classified |
| 1983 | San Marino Grand Prix · Grand Prix | Suzuki | 13 | | Classified |