A mystery Can-Am rider? Can you name him?

I now have over 8000 of my retro negatives digitized...and in that entire batch, you won't see many shots of a Can-Am rider.  I think Can-Am was really an element of the mid-1970's and was on the phase-out by the time I hit the national scene.

Any idea who this is?  If you're a Retro Motocross fan with the answer, please post a comment!