Zama carb problem
 

I have a Zama carb on a 32 cc craftsman weed wacker that has stopped running.
when I pump the primer bulb fuel flows out of the carb venturi instead of going back out the over flow tube and back into the tank. I have taken the carb apart but there is really nothing in there to look at. any ideas?
At this point i'm thinking about just buying a new carb, they cost around 32 delivered and for that price no one is gonna open up my carb and look at and fix it.

Zama Carburetors are bad for having the sealant around the welsh-plugs fall out and get stuck in the check valves... you can clean them up using Brake cleaner (not carb cleaner) and use super-glue around the plugs and you will probably get another year out of the carb