1990 Japanese motorcycle Grand Prix

  1990 Japanese Grand Prix
Race details
Race 1 of 15 races in the
1990 Grand Prix motorcycle racing season
Date25 March 1990
Official nameKibun Japanese Grand Prix
LocationSuzuka Circuit
Course
  • Permanent racing facility
  • 5.821 km (3.617 mi)
500cc
Pole position
Rider Wayne Rainey
Time 2:09.589
Fastest lap
Rider Wayne Rainey
Time 2:11.354
Podium
First Wayne Rainey
Second Wayne Gardner
Third Kevin Schwantz
250cc
Pole position
Rider John Kocinski
Time 2:14.273
Fastest lap
Rider Jacques Cornu
Time 2:16.452
Podium
First Luca Cadalora
Second Carlos Cardús
Third Wilco Zeelenberg
125cc
Pole position
Rider Kinya Wada
Time 2:25.033
Fastest lap
Rider Stefan Prein
Time 2:25.045
Podium
First Hans Spaan
Second Stefan Prein
Third Koji Takada

The 1990 Japanese motorcycle Grand Prix was the first round of the 1990 Grand Prix motorcycle racing season. It took place on the weekend of 23–25 March 1990 at the Suzuka Circuit.