# Grand Prix moto du Japon 1991

Le Grand Prix moto du Japon 1991 est la première manche du championnat du monde de vitesse moto 1991. L'épreuve s'est déroulée du 22 au 24 mars 1991 sur le circuit de Suzuka.
C'est la onzième édition du Grand Prix moto du Japon.

## Classement catégorie 500 cm$^3$

| Pos | Pilote | Constructeur | Tours | Temps/Écart | Grille | Points |
| 1 | Kevin Schwantz | Suzuki | 22 | 48 min 35 s 747 | 1 | 20 |
| 2 | Michael Doohan | Honda | 22 | + 0 s 204 | 2 | 17 |
| 3 | Wayne Rainey | Yamaha | 22 | + 0 s 353 | 5 | 15 |
| 4 | John Kocinski | Yamaha | 22 | + 0 s 556 | 3 | 13 |
| 5 | Wayne Gardner | Honda | 22 | + 35 s 311 | 11 | 11 |
| 6 | Eddie Lawson | Cagiva | 22 | + 44 s 915 | 6 | 10 |
| 7 | Juan Garriga | Yamaha | 22 | + 55 s 830 | 4 | 9 |
| 8 | Sito Pons | Honda | 22 | +1 min 08 s 316 | 13 | 8 |
| 9 | Kenichiro Iwahashi | Honda | 22 | +1 min 08 s 373 | 10 | 7 |
| 10 | Alex Barros | Cagiva | 22 | +1 min 15 s 302 | 8 | 6 |
| 11 | Doug Chandler | Yamaha | 22 | +1 min 15 s 595 | | 5 |
| 12 | Adrien Morillas | Yamaha | 22 | +1 min 18 s 928 | | 4 |
| 13 | Kevin Magee | Suzuki | 22 | +1 min 20 s 899 | | 3 |
| 14 | Didier de Radiguès | Suzuki | 22 | +1 min 22 s 472 | | 2 |
| 15 | Peter Goddard | Yamaha | 22 | +1 min 22 s 696 | 12 | 1 |
| 16 | Shinichi Itoh | Honda | 22 | +1 min 38 s 831 | 9 | |
| 17 | Toshihiko Honma | Yamaha | 22 | +1 min 41 s 697 | | |
| 18 | Kunio Machii | Yamaha | 22 | +1 min 41 s 905 | | |
| 19 | Satoshi Tsujimoto | Suzuki | 22 | +1 min 54 s 952 | | |
| 20 | Hikaru Miyagi | Honda | 22 | +1 min 55 s 213 | | |
| 21 | Tasuro Arata | Yamaha | 21 | +1 tour | | |
| 22 | Cees Doorakkers | Honda | 21 | +1 tour | | |
| Abd. | Eddie Laycock | Yamaha | 17 | Abandon | | |
| Abd. | Jean-Philippe Ruggia | Yamaha | 9 | Abandon | 7 | |
| Abd. | Keiji Ohishi | Yamaha | 9 | Abandon | | |
| Abd. | Norihiko Fujiwara | Yamaha | 7 | Abandon | 15 | |
| Abd. | Osamu Hiwatashi | Suzuki | 1 | Abandon | | |
| Abd. | Tadahiko Taira | Yamaha | 1 | Abandon | 14 | |

## Classement catégorie 250 cm$^3$

| Pos | Pilote | Constructeur | Tours | Temps/Écart | Grille | Points |
| 1 | Luca Cadalora | Honda | 20 | 45 min 23 s 048 | 8 | 20 |
| 2 | Carlos Cardús | Honda | 20 | + 0 s 255 | 2 | 17 |
| 3 | Wilco Zeelenberg | Honda | 20 | + 17 s 876 | 1 | 15 |
| 4 | Masumitsu Taguchi | Honda | 20 | + 21 s 180 | 9 | 13 |
| 5 | Nobuatsu Aoki | Honda | 20 | + 21 s 560 | 11 | 11 |
| 6 | Tetsuya Harada | Yamaha | 20 | + 21 s 570 | 3 | 10 |
| 7 | Helmut Bradl | Honda | 20 | + 22 s 060 | 6 | 9 |
| 8 | Masahiro Shimizu | Honda | 20 | + 23 s 103 | | 8 |
| 9 | Loris Reggiani | Aprilia | 20 | + 31 s 920 | 15 | 7 |
| 10 | Tsutomu Udagawa | Honda | 20 | + 37 s 366 | 4 | 6 |
| 11 | Katsuyoshi Kozono | Honda | 20 | + 37 s 953 | 7 | 5 |
| 12 | Kyoji Namba | Yamaha | 20 | + 40 s 569 | 12 | 4 |
| 13 | Jochen Schmid | Honda | 20 | + 56 s 684 | | 3 |
| 14 | Martin Wimmer | Suzuki | 20 | + 56 s 734 | 10 | 2 |
| 15 | Toshiyuki Arakaki | Honda | 20 | + 57 s 140 | | 1 |
| 16 | Osamu Miyazaki | Yamaha | 20 | + 58 s 962 | | |
| 17 | Pierfrancesco Chili | Aprilia | 20 | +1 min 00 s 083 | 13 | |
| 18 | Jean-Pierre Jeandat | Honda | 20 | +1 min 03 s 334 | | |
| 19 | Andreas Preining | Aprilia | 20 | +1 min 08 s 539 | | |
| 20 | Stefan Prein | Honda | 20 | +1 min 10 s 775 | | |
| 21 | Alberto Puig | Yamaha | 20 | +1 min 31 s 053 | | |
| 22 | Takehiko Kurokawa | Honda | 20 | +1 min 34 s 951 | | |
| 23 | Leon van der Heyden | Honda | 20 | +1 min 35 s 323 | | |
| 24 | Yoshomasa Kato | Yamaha | 20 | +1 min 38 s 026 | | |
| 25 | Carlos Lavado | Yamaha | 20 | +1 min 41 s 074 | | |
| 26 | Paolo Casoli | Yamaha | 20 | +1 min 48 s 765 | | |
| 27 | Urs Jucker | Yamaha | 20 | +2 min 07 s 587 | | |
| 28 | Peter Linden | Honda | 20 | +2 min 10 s 769 | | |
| 29 | Kevin Mitchell | Yamaha | 20 | +2 min 13 s 523 | | |
| 30 | Frédéric Protat | Aprilia | 20 | +2 min 13 s 687 | | |
| 31 | Jim Filice | Yamaha | 19 | +1 tour | | |
| 32 | Bernard Hänggeli | Aprilia | 19 | +1 tour | | |
| Abd. | Hiroyuki Yamagishi | Honda | 18 | Abandon | | |
| Abd. | Jaime Mariano | Aprilia | 16 | Abandon | | |
| Abd. | Àlex Crivillé | Honda | 13 | Abandon | 14 | |
| Abd. | Corrado Catalano | Honda | 6 | Abandon | | |
| Abd. | Tadayuki Okada | Honda | 5 | Abandon | 5 | |
| Abd. | Doriano Romboni | Honda | 1 | Abandon | | |

## Classement catégorie 125 cm$^3$

| Pos | Pilote | Constructeur | Tours | Temps/Écart | Grille | Points |
| 1 | Noboru Ueda | Honda | 16 | 38 min 26 s 905 | 1 | 20 |
| 2 | Fausto Gresini | Honda | 16 | + 2 s 553 | 3 | 17 |
| 3 | Loris Capirossi | Honda | 16 | + 8 s 676 | 2 | 15 |
| 4 | Masato Shima | Honda | 16 | + 15 s 917 | 10 | 13 |
| 5 | Jorge Martínez | JJ Cobas | 16 | + 33 s 737 | | 11 |
| 6 | Heinz Lüthi | Honda | 16 | + 37 s 389 | 11 | 10 |
| 7 | Ralf Waldmann | Honda | 16 | + 37 s 546 | | 9 |
| 8 | Akira Saito | Honda | 16 | + 38 s 930 | 12 | 8 |
| 9 | Soichiro Sato | Honda | 16 | + 39 s 174 | 15 | 7 |
| 10 | Adolf Stadler | JJ Cobas | 16 | + 39 s 327 | 5 | 6 |
| 11 | Gabriele Debbia | Aprilia | 16 | + 39 s 380 | 13 | 5 |
| 12 | Nobuyuki Wakai | Honda | 16 | + 39 s 425 | 4 | 4 |
| 13 | Yosuke Yamakawa | Honda | 16 | + 45 s 178 | 8 | 3 |
| 14 | Gimmi Bosio | Honda | 16 | + 47 s 160 | | 2 |
| 15 | Kinya Wada | Honda | 16 | + 47 s 506 | | 1 |
| 16 | Hans Spaan | Honda | 16 | + 47 s 883 | 7 | |
| 17 | Masayuki Hirose | Honda | 16 | + 48 s 032 | | |
| 18 | Koji Takada | Honda | 16 | + 54 s 478 | | |
| 19 | Hisashi Unemoto | Honda | 16 | + 54 s 555 | | |
| 20 | Arie Molenaar | Honda | 16 | +1 min 03 s 982 | | |
| 21 | Dirk Raudies | Honda | 16 | +1 min 05 s 364 | | |
| 22 | Steve Patrickson | Honda | 16 | +1 min 06 s 647 | | |
| 23 | Hideaki Ueno | Honda | 16 | +1 min 06 s 674 | | |
| 24 | Julián Miralles | JJ Cobas | 16 | +1 min 06 s 892 | | |
| 25 | Alessandro Gramigni | Aprilia | 16 | +1 min 26 s 032 | | |
| 26 | Johnny Wickström | Honda | 16 | +1 min 30 s 576 | | |
| 27 | Robin Appleyard | Honda | 16 | +1 min 30 s 874 | | |
| 28 | Maurizio Vitali | Gazzaniga | 16 | +1 min 30 s 939 | | |
| 29 | Thierry Feuz | Honda | 16 | +1 min 32 s 191 | | |
| 30 | Olivier Petrucciani | Aprilia | 16 | +1 min 56 s 424 | | |
| 31 | Peter Galvin | Honda | 16 | +1 min 56 s 544 | | |
| 32 | Hubert Abold | Honda | 16 | +2 min 24 s 346 | | |
| 33 | Manuel Herreros | JJ Cobas | 15 | +1 tour | | |
| Abd. | Ezio Gianola | Derbi | 13 | Abandon | 14 | |
| Abd. | Masafumi Ono | Honda | 13 | Abandon | 9 | |
| Abd. | Herri Torrontegui | JJ Cobas | 9 | Abandon | | |
| Abd. | Bruno Casanova | Honda | 6 | Abandon | 6 | |
| Abd. | Alfred Waibel | Honda | 6 | Abandon | | |
| Abd. | Kazuto Sakata | Honda | 5 | Abandon | | |
| Abd. | Emilio Cuppini | Gazzaniga | 2 | Abandon | | |