I saw the tribute run during Moto GP weekend. He really ran it hard for a few laps. It was spectacular for an exhibition run.
The funniest part was after the run everyone was praising Kenny, yacking about his exploits and the bike and gave him awards. It went on for 10 minutes. Kenny never said a word. Finally they asked Valentino Rossi in attendance, "Valentino have you ever wanted to race flat track?"
Rossi answered in heavy accident, "No, it looks a little too dangerous."
And then Kenny said his only words of the night,"He's smarter than he looks."
classic.
If I couldn't be there in the 70s at least I saw that.