Christof13T wrote on 01/24/18 at 14:51:14:The problem persists, but much less intensely. If I place the petcock on reserve... It does not puke. Only while in the on position.
Could the diaphragm in the petcock be making to much pressure in the on position?
The diaphragm in the petcock does not make pressure.
It only pulls back the valve to let gas flow.
In that regard, on and res are exactly the same.
Prime however, has a little finger that pushes back the valve.
Are you sure you have it in "on" vs. prime?
In all cases, the float valve should be able to stop the flow when the bowl is full.
double check yourself, read carb specs in the tech section to confirm you got it right.