Finally talked to that "yellow jpn " owner, from years ago, he still has the bike, apparently it was the only twin headlight yellow gus kuhn works racer bike brought into n.a. in 74. engine was upgraded to almost combat specs from gus kuhn motors.according to him there was a black twin headlight gk brought into canada as well way back in 74. we are going to meet for a coffee in a couple weeks, so i will get to see some dtailed pictures of the bike. looks like we may do some riding in the summer. should be an interesting sight on the hiway, a jpn and a gk side by side. i will get some gopro helmet cam footage up on youtube when it happens.