Wes Cooley and Yoshimura won the 1979 and 1980 AMA Superbike Championships on a Suzuki GS1000S. This is the team in 1982 with the new Suzuki Katana.
And the bike at The Toronto International Motorcycle Show 20 odd years later.
And an action pic from somewhere on the net
Looks like the same bike, I wonder who #40 is.
Below; Two pictures of other Katana racers from Daytona 1982.
"Bettencourt" on the fairing spears...