Hey everyone! I'm new to motorcycling and recently picked up a 1982 xs400 Seca. I had it out a few days ago and noticed that it seemed a bit wobbly. Got it home tossed it up on the center stand, with engine off, spun rear wheel and noticed a slight wobble. Started the bike up, put it in gear and saw the same thing. The wheels are cast aluminum and I can't see any noticeable deformation. Not sure if it's bearings, swing arm related, etc... Also not sure if it's something that I can tackle or if I'd be better off having it done by a shop. Any and all help is greatly appreciated!