One way to do a simple, basic wobble test....
bolt the wheel on the hub, preferably the front hub, make sure both the back side of the wheel and the hub are nice and clean, place a piece of white cardboard or something like it behind the wheel. Shine a light on the cardboard in such a way that you can't see the light itself but it basically silhouettes the wheel. Get nice and comfy leaning against something so you are stable and not wobbling. Look across the wheel at the cardboard. Now spin the wheel. You should be able to see any bounce, wobble or bends.
Putting a piece of graph paper on the cardboard can enhance your ability to see and variations as the movement would show up well with the graph lines behind the wheel.
It's pretty simple, even simpler than trying to explain it, but do make sure your wheelbearings are good.
Are you looking for a Solex or Weber?