(A) defective fuel valve
(B) fuel valve out of adjustment
(C) defective float
(D) too much fuel pressure (electric pump???)
(E) too much fuel pressure (fuel tank vent not operational)
(F) - rare - cracked bowl cover in area of fuel valve

Jon.


Good carburetion is fuelish hot air
The most expensive carburetor is the wrong one you attempt to modify.
If you truly believe "one size fits all," try walking a mile in your spouse's shoes!
The Carburetor Shop