Inspect Gas Cap Ventilation

What happens here

Examine the gas cap. Honda engine gas caps are designed to be vented, meaning they allow air into the fuel tank as gas is consumed by the carburetor. If the vent in the gas cap becomes clogged or faulty, it can create a vacuum inside the fuel tank. This vacuum prevents gravity from effectively drawing gas down to the carburetor, causing the engine to starve for fuel and eventually stall. When this happens, opening the gas cap allows air back in, releasing the vacuum, and the engine will temporarily restart. To test if the gas cap is faulty, you can try running the pressure washer with the gas cap loosely fitted or removed (in a well-ventilated area, for a short period). If it runs without stalling, replace the gas cap with a new, properly vented one. The presenter demonstrates how to open and close the gas cap, highlighting the vent holes inside.

Goal: Ensure the gas cap is properly venting to prevent fuel starvation.