needle & seat maybe dirty , also check float level
The primary reason for gas over flow from the carburetor is a stuck or failed needle seat valve.
Stuck floats or dirty needle valve.
probably needs uncluging
when it rains alot
The flow of air in the carburetor venturi is restricted.
no
hb
A bad, stuck or dirty float needle inside the carburetor.
You can adjust your VW carburetor by using the adjustment screws. There is an adjustment screw to adjust the flow of fuel. There is an adjustment screw to adjust the flow of air.
cilia
bad seal in between your intke manifold and carburetor
Choke