Vapor lock

Vapor lock occurs when gasoline vaporizes in the fuel pipe between the tank and carburetor or in the fuel filter bowl, etc., and obstructs the supply of gasoline.
Vapor lock occurs when the temperature around the engine rises due to driving at high speeds for long periods of time in extreme heat or during high-load operation, and may cause the engine to stop due to idling malfunctions, poor acceleration, etc.

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