Back to the Future
Argh !! It's not a Yamaha !!! It's a Honda. We can see this golden wing on the tank.
Correct model definition should be XL 600 RF (bike category first ) I think it is the XL 600 RD 83' I think US model is called simply XL600R, and year is '84. Identify point is the decal of "600R" on the side-cover. '83 is plain white, '84 is like this picture.