| 1975 | Austrian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1975 | German Grand Prix · Grand Prix | Suzuki | 12 | | Classified |
| 1975 | Nations Grand Prix · Grand Prix | Suzuki | 7 | | Classified |
| 1975 | Dutch TT · Grand Prix | Suzuki | 4 | | Classified |
| 1975 | Belgian Grand Prix · Grand Prix | Suzuki | 2 | | Classified |
| 1975 | Swedish Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1976 | Nations Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1976 | Dutch TT · Grand Prix | Suzuki | — | | Ret |
| 1976 | Belgian Grand Prix · Grand Prix | Suzuki | 9 | | Classified |
| 1976 | Swedish Grand Prix · Grand Prix | Suzuki | 10 | | Classified |
| 1976 | Finnish Grand Prix · Grand Prix | Suzuki | 4 | | Classified |
| 1976 | Czechoslovak Grand Prix · Grand Prix | Suzuki | 1 | | Classified |
| 1976 | German Grand Prix · Grand Prix | Suzuki | 4 | | Classified |
| 1977 | Austrian Grand Prix · Grand Prix | Suzuki | — | | DNS |
| 1977 | German Grand Prix · Grand Prix | Suzuki | 15 | | Classified |
| 1977 | Nations Grand Prix · Grand Prix | Suzuki | 7 | | Classified |
| 1977 | French Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1977 | Dutch TT · Grand Prix | Suzuki | 12 | | Classified |
| 1977 | Belgian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1977 | Swedish Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1977 | British Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1978 | Spanish Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1978 | Austrian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1978 | French Grand Prix · Grand Prix | Suzuki | 18 | | Classified |
| 1978 | Dutch TT · Grand Prix | Suzuki | 7 | | Classified |
| 1978 | Belgian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1978 | British Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1979 | British Grand Prix · Grand Prix | Suzuki | 10 | | Classified |
| 1980 | British Grand Prix · Grand Prix | Suzuki | 12 | | Classified |
| 1981 | Marlboro British Grand Prix · Grand Prix | Suzuki | — | | Ret |