| 1978 | Venezuelan Grand Prix · Grand Prix | Suzuki | 7 | | Classified |
| 1978 | French Grand Prix · Grand Prix | Suzuki | — | | DNS |
| 1982 | Austrian Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1982 | French Grand Prix · Grand Prix | Suzuki | — | | WD |
| 1982 | Nations Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1982 | Dutch TT · Grand Prix | Suzuki | 27 | | Classified |
| 1982 | Belgian Grand Prix · Grand Prix | Suzuki | 18 | | Classified |
| 1982 | Yugoslavian Grand Prix · Grand Prix | Suzuki | 21 | | Classified |
| 1982 | British Grand Prix · Grand Prix | Suzuki | 9 | | Classified |
| 1982 | San Marino Grand Prix · Grand Prix | Suzuki | 8 | | Classified |
| 1982 | German Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1984 | Italian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1984 | Spanish Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1984 | Austrian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1984 | German Grand Prix · Grand Prix | Suzuki | 15 | | Classified |
| 1984 | French Grand Prix · Grand Prix | Suzuki | 21 | | Classified |
| 1984 | Yugoslavian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1984 | Dutch TT · Grand Prix | Suzuki | 20 | | Classified |
| 1984 | Belgian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1984 | British Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1984 | Swedish Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1984 | San Marino Grand Prix · Grand Prix | Suzuki | 7 | | Classified |
| 1985 | Italian Grand Prix · Grand Prix | | 19 | | Classified |
| 1985 | Yugoslavian Grand Prix · Grand Prix | | 27 | | Classified |
| 1985 | San Marino Grand Prix · Grand Prix | | 16 | | Classified |
| 1986 | Spanish Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1986 | Italian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1986 | Austrian Grand Prix · Grand Prix | Suzuki | 20 | | Classified |
| 1986 | Yugoslavian Grand Prix · Grand Prix | Suzuki | 24 | | Classified |
| 1986 | Dutch TT · Grand Prix | Suzuki | — | | Ret |
| 1986 | Belgian Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1986 | French Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1986 | San Marino Grand Prix · Grand Prix | Suzuki | — | | Ret |
| 1987 | San Marino Grand Prix · Grand Prix | Honda | — | | Ret |