That's home-made, or some sort of cobbled-"thing". Look at that "all-thread" on the front shocks. No company would have come out with that, because somebody would have been skewered on those forks.
The wheels appear to be a Honda Trail 70. That seat is from an old bicycle. The engine isn't that old at all, probably from a snow-blower or go-kart, where did the gas tank ever fit? and that looks like a Tav-30.
Check out those jack-shaft sprockets? What a screwy set-up, as they don't appear to line up...and there's some sort of triangle pattern to them?
It has some real possibilities, but i don't think it was commercially made as a whole bike.