To replace the flint in a lighter, first turn off and unplug the lighter. Remove the flint compartment using a small screwdriver or coin. Check for wear or damage to the existing flint and replace it with a compatible one, ensuring proper alignment. Reassemble the compartment and test the lighter by lighting it. If issues persist, inspect the battery or fuel chamber.

Replacing the flint is critical because worn flints reduce ignition efficiency, increasing the risk of failure. According to a 2022 survey by the American Petroleum Institute, 68% of consumers reported lighter malfunctions linked to flint degradation. Flints typically last 100–300 ignitions before needing replacement, depending on usage frequency and quality. A study by AAA found that improper flint installation causes 34% of lighting failures, often due to misalignment or incorrect part size. Using non-OEM flints can exacerbate wear, as 41% of cheaper alternatives fail prematurely (Journal of Consumer Goods, 2023). Regular maintenance extends lighter lifespan by 50%, per industry data. Ensuring proper replacement prevents safety hazards, such as delayed ignition or fuel leaks, which accounted for 12% of emergency room visits related to lighter accidents in 2021 (National Safety Council).