What are the causes of carburetor fuel leakage?

[CharlotteLynn]

The causes of carburetor fuel leakage are: 1. Foreign objects stuck in the main fuel needle causing continuous rise of fuel level and leakage; 2. Wear of the needle valve leading to improper sealing; 3. Stuck float preventing the needle valve from closing. The function of a carburetor is: To mix a certain amount of gasoline with air for proper engine operation. Symptoms of carburetor damage include: 1. Unstable engine idle; 2. Difficulty or inability to start the vehicle, with spark plugs failing to ignite properly; 3. Black smoke from the exhaust pipe during rapid acceleration, affecting exhaust emissions. Methods to address carburetor damage are: 1. Replace with qualified float needle and needle seat components; 2. Repair using a float needle seat repair tool; 3. After processing, the top must be polished with flannel cloth.