Why is my carburettor flooding/overflowing fuel?

If your carburettor is overflowing fuel, the most common causes are a sticking float, a worn float valve, or dirt blocking the needle seat. This lets fuel keep flowing into the bowl until it spills out through the overflow.

👉 Quick fixes like tapping the carb may stop it temporarily, but for a long-term solution you’ll need a proper carburettor rebuild or ultrasonic carb cleaning service. Replacing the float valve and setting the float height correctly will prevent fuel overflow and restore smooth running.


💡 We offer a full carburettor refurbishment service to eliminate flooding problems once and for all.

Book a Carb Service or Restoration Today