Why does the car have difficulty starting but runs normally after starting?

[VanLouis]

The reasons why the car has difficulty starting but runs normally after starting are as follows: 1. Incorrect starting method: The starting method is incorrect, such as not closing the choke when starting a cold engine, or not pressing the float sinker, resulting in an excessively lean combustible mixture entering the cylinder. 2. Closed choke: When starting a hot engine, the choke is closed, or the float sinker is pressed multiple times, causing an excessively rich combustible mixture to enter the cylinder, which "floods" the spark plug, preventing the engine from starting. In this case, the choke and decompression valve should be opened, or the spark plug should be removed, the engine should be turned over to drain the fuel from the cylinder, and then restarted.