I have a rougly 16" piece of 1/2 solid rod that I slide in from one side and angle it in so it will hit the bushing edge on the inside and tap it out, Gotta keep working around it to get it to somewhat drive out fairly straight. They are not really a reusable item but they are dirt cheap and should be replaced at some point in the bikes life at least so dont sweat messing them up. You will need to, or at east should, do the swingarm bushings too.
This is what I use to reinstall new bushings in, I do it the same way at the headtube:
This what I do for installing the bearings for the jackshaft: