Get the book. The one by the NewZealand author who knew him - can't remember his name. The book is about $30. If you're any kind of gearhead you'll love the detail describing how Burt made all the parts on his Indian. He also had a Velocette he spent nearly as much time on.
He claims he learned 7 trades over a lifetime with his work on the Indian. The most incredible task he set to in my opinion was to grind off the teeth on a clutch hub and file new teeth into it, by hand! He learned how to cast parts, weld, machine, heat treat metal and hand hammer aluminum. The stories go on and on. He was a fearless racer and the most obnoxious/likeble character. The movie even with Hopkins great portrayal doesn't begin to describe what a character or tehnical wizard Burt Munro was. He failed constantly and it never seemed to slow him down. It's a fantastic read. But, there are few pictures, long chapters and excruciating detail about the technical aspects of the motors he worked on - loved it!!