1. Float level is too high. This is the most common cause of carb leaks. The float level is what determines how much fuel flows into the carburetor. If it's set too high, the fuel will overflow and leak out of the carb.
2. Floats are damaged. If the floats are damaged, they may not be able to properly control the fuel level. This can also lead to carb leaks.
3. Needle and seat are worn. The needle and seat are responsible for stopping the flow of fuel into the carburetor. If they're worn out, they may not be able to do their job properly, which can lead to a carb leak.
4. Carburetor gasket is damaged. The carburetor gasket is what seals the carburetor to the engine. If it's damaged, it can allow air to leak in, which can cause the carb to leak fuel.
5. Carburetor vent line is clogged. The carburetor vent line allows air to escape from the carburetor. If it's clogged, the pressure in the carburetor will build up and eventually force fuel out of the leaks.
If you're experiencing a leak from your Harley Davidson Heritage Softail carburetor, it's important to address it as soon as possible. Carb leaks can cause your motorcycle to run poorly and can even damage the engine. If you're not comfortable inspecting and fixing the leak yourself, you can take your motorcycle to a qualified mechanic.
