Yes, they are all press fit. I don't have a lot of confidence in my ability to control a torch well enough to avoid overheating the sprocket, so the last time I did the job I heated the sprocket to 450* in an oven and chilled the cam in a freezer. Those temps didn't let me just drop the sprocket on, but it gave me enough to start it, line up the marks, and finish driving it home in the press. In using the press you need to be very careful that you've started the sprocket without cocking and support the work so that it's level. I found a camshaft in a salvage XS650 motor that showed what happens when those things aren't carefully done; it had a big chunk broken out of the sprocket boss.
And before somebody asks: Yes, 34t and 36t camshaft sprockets have the same ID.