The 1991 Japanese motorcycle Grand Prix was the first round of the 1991 Grand Prix motorcycle racing season. It took place on the weekend of 22–24 March 1991 at the Suzuka Circuit.
Noboru Ueda, who won the 125cc race on his Grand Prix motorcycle racing debut, would become the last rider to win on his debut until Can Öncü in 2018.
500 cc classification Pos. Rider Team Manufacturer Laps Time Grid Points 1 Kevin Schwantz Lucky Strike Suzuki Suzuki 22 48:35.747 1 20 2 Michael Doohan Rothmans Honda Team Honda 22 +0.204 2 17 3 Wayne Rainey Marlboro Team Roberts Yamaha 22 +0.353 5 15 4 John Kocinski Marlboro Team Roberts Yamaha 22 +0.556 3 13 5 Wayne Gardner Rothmans Honda Team Honda 22 +35.311 11 11 6 Eddie Lawson Cagiva Corse Cagiva 22 +44.915 6 10 7 Juan Garriga Ducados Yamaha Yamaha 22 +55.830 4 9 8 Sito Pons Campsa Honda Team Honda 22 +1:08.316 13 8 9 Kenichiro Iwahashi Ajinomoto Honda Honda 22 +1:08.373 10 7 10 Alex Barros Cagiva Corse Cagiva 22 +1:15.302 8 6 11 Doug Chandler Roberts B Team Yamaha 22 +1:15.595 5 12 Adrien Morillas Sonauto Yamaha Mobil 1 Yamaha 22 +1:18.928 4 13 Kevin Magee Lucky Strike Suzuki Suzuki 22 +1:20.899 3 14 Didier de Radiguès Lucky Strike Suzuki Suzuki 22 +1:22.472 2 15 Peter Goddard Itariya-Hayashi Racing Yamaha 22 +1:22.696 12 1 16 Shinichi Itoh Pentax Honda (HRC) Honda 22 +1:38.831 9 17 Toshihiko Honma YMO (Yamaha Racing Team Roadrace) Yamaha 22 +1:41.697 18 Kunio Machii Nescafe Yamaha Yamaha 22 +1:41.905 19 Satoshi Tsujimoto Suzuki Racing Team Suzuki 22 +1:54.952 20 Hikaru Miyagi Ajinomoto Honda (HRC) Honda 22 +1:55.213 21 Tatsuro Arata Ito-en Racing Yamaha 21 +1 lap 22 Cees Doorakkers HEK-Baumachines Honda 21 +1 lap Ret Eddie Laycock Millar Racing Yamaha 17 Retired Ret Jean-Philippe Ruggia Sonauto Yamaha Mobil 1 Yamaha 9 Retired 7 Ret Keiji Ohishi Camel Yamaha (Playmate Racing Team) Yamaha 9 Retired Ret Norihiko Fujiwara Kirin Mets Racing Team Yamaha 7 Retired 15 Ret Osamu Hiwatashi Suzuki Racing Team Suzuki 1 Retired Ret Tadahiko Taira Yamaha Racing Team Roadrace Yamaha 1 Retired 14 DNQ Nicholas Schmassman Schmassman Technotron Honda 0 Did not qualify
250 cc classification
Pos Rider Manufacturer Laps Time Grid Points 1 Luca Cadalora Honda 20 45:23.048 8 20 2 Carlos Cardús Honda 20 +0.255 2 17 3 Wilco Zeelenberg Honda 20 +17.876 1 15 4 Masumitsu Taguchi Honda 20 +21.180 9 13 5 Nobuatsu Aoki Honda 20 +21.560 11 11 6 Tetsuya Harada Yamaha 20 +21.570 3 10 7 Helmut Bradl Honda 20 +22.060 6 9 8 Masahiro Shimizu Honda 20 +23.103 8 9 Loris Reggiani Aprilia 20 +31.920 15 7 10 Tsutomu Udagawa Honda 20 +37.366 4 6 11 Katsuyoshi Kozono Honda 20 +37.953 7 5 12 Kyoji Namba Yamaha 20 +40.569 12 4 13 Jochen Schmid Honda 20 +56.684 3 14 Martin Wimmer Suzuki 20 +56.734 10 2 15 Toshiyuki Arakaki Honda 20 +57.140 1 16 Osamu Miyazaki Yamaha 20 +58.962 17 Pierfrancesco Chili Aprilia 20 +1:00.083 13 18 Jean-Pierre Jeandat Honda 20 +1:03.334 19 Andreas Preining Aprilia 20 +1:08.539 20 Stefan Prein Honda 20 +1:10.775 21 Alberto Puig Yamaha 20 +1:31.053 22 Takehiko Kurokawa Honda 20 +1:34.951 23 Leon van der Heyden Honda 20 +1:35.323 24 Yoshomasa Kato Yamaha 20 +1:38.026 25 Carlos Lavado Yamaha 20 +1:41.074 26 Paolo Casoli Yamaha 20 +1:48.765 27 Urs Jucker Yamaha 20 +2:07.587 28 Peter Linden Honda 20 +2:10.769 29 Kevin Mitchell Yamaha 20 +2:13.523 30 Frédéric Protat Aprilia 20 +2:13.687 31 Jim Filice Yamaha 19 +1 lap 32 Bernard Hänggeli Aprilia 19 +1 lap Ret Hiroyuki Yamagishi Honda 18 Retired Ret Jaime Mariano Aprilia 16 Retired Ret Àlex Crivillé Honda 13 Retired 14 Ret Corrado Catalano Honda 6 Retired Ret Tadayuki Okada Honda 5 Retired 5 Ret Doriano Romboni Honda 1 Retired
125 cc classification Pos Rider Manufacturer Laps Time Grid Points 1 Noboru Ueda Honda 16 38:26.905 1 20 2 Fausto Gresini Honda 16 +2.553 3 17 3 Loris Capirossi Honda 16 +8.676 2 15 4 Masato Shima Honda 16 +15.917 10 13 5 Jorge Martínez JJ Cobas 16 +33.737 11 6 Heinz Lüthi Honda 16 +37.389 11 10 7 Ralf Waldmann Honda 16 +37.546 9 8 Akira Saito Honda 16 +38.930 12 8 9 Soichiro Sato Honda 16 +39.174 15 7 10 Adolf Stadler JJ Cobas 16 +39.327 5 6 11 Gabriele Debbia Aprilia 16 +39.380 13 5 12 Nobuyuki Wakai Honda 16 +39.425 4 4 13 Yosuke Yamakawa Honda 16 +45.178 8 3 14 Gimmi Bosio Honda 16 +47.160 2 15 Kinya Wada Honda 16 +47.506 1 16 Hans Spaan Honda 16 +47.883 7 17 Masayuki Hirose Honda 16 +48.032 18 Koji Takada Honda 16 +54.478 19 Hisashi Unemoto Honda 16 +54.555 20 Arie Molenaar Honda 16 +1:03.982 21 Dirk Raudies Honda 16 +1:05.364 22 Steve Patrickson Honda 16 +1:06.647 23 Hideaki Ueno Honda 16 +1:06.674 24 Julián Miralles JJ Cobas 16 +1:06.892 25 Alessandro Gramigni Aprilia 16 +1:26.032 26 Johnny Wickström Honda 16 +1:30.576 27 Robin Appleyard Honda 16 +1:30.874 28 Maurizio Vitali Gazzaniga 16 +1:30.939 29 Thierry Feuz Honda 16 +1:32.191 30 Oliver Petrucciani Aprilia 16 +1:56.424 31 Peter Galvin Honda 16 +1:56.544 32 Hubert Abold Honda 16 +2:24.346 33 Manuel Herreros JJ Cobas 15 +1 lap Ret Ezio Gianola Derbi 13 Retired 14 Ret Masafumi Ono Honda 13 Retired 9 Ret Herri Torrontegui JJ Cobas 9 Retired Ret Bruno Casanova Honda 6 Retired 6 Ret Alfred Waibel Honda 6 Retired Ret Kazuto Sakata Honda 5 Retired Ret Emilio Cuppini Gazzaniga 2 Retired
References