I had to remove them from my 250. It can probably be done with a bolt, nut and washer. washer just small enough to pass thru, then push to one side before tightening or pulling. I wouldn't want to use a chisel or any of that because you don't want to chase needle bearings or races. I tried chasing around ideas and friends with lots of tools or ideas, but after a week of hunting, I found the tool.
Its called a blind hole bearing puller. A kid about twenty years old and with about that many piercings in his head, had it out in less than a minute. It spreads as you tighten it and is attached to a slide hammer. "Bap, bap, bap," it was out. That bearing doesn't need to be removed very often, so I didn't see a reason to buy one.
