Are there any Manual choke carbs from a mini dirt bike that may fit the 50/90 quads?

I was wondering if something from the little xr50 pit bikes would work...they are pretty popular right now and have seen carbs for them going cheap.

I am mostly interested in something for our Skyhawk 50 that may get a 70 kit soon. The electric choke has to go. It's not a race quad so I don't really want to buy new right now...anyone have any suggestions?

Any for sale?