Talking to my father a couple nights ago about my recent bike purchase and he fills me on on the following. He and a buddy(both 18) drove out to Oregon from Michigan in a 55 Chevy with straight pipes. They sold the car in Oregon and each purchased new Yamaha Big Bear Scrambler to tour the west and drive home. The salesman sold em on it because of its "scarambler ability", which he said was a joke as it was waaaay to heavy They spent a couple weeks camping in Yellow Stone and touring Cali until returning home. This was in the late sixties. He says he'll give me the full story some time soon.
Look at this thing, it's a two stoker twin

Maybe I'll pick one up if I can find one for him just for nostalgia?