[rebelpacket]

Not positive what your swingarm looks like, so its tough to reccomend a tool. Is there a hole straight through with a lip retaining the bearing, or is it completely blind (only accessable from one side)?

You can make a bearing press with some threaded rod, a few nuts and washers, and two sockets. (Its what I use to change swingarm bearings). All parts availible at your local home depot or hardware store for around 5$ and some change.

Again though, this may not work, as I have no idea what your swingarm looks like.