To pull the cotton core from a kerosene lighter, first disassemble the lighter by removing the fuel tank and top cover. Locate the metal sleeve or clip holding the cotton wick in place. Gently twist and pull the core upward while maintaining pressure on the retaining mechanism. If the core is tightly wound, use a thin, non-abrasive tool like a plastic spudger to separate the fibers. After extraction, clean the interior with a dry cloth and refill the lighter with kerosene if necessary. Always ensure the lighter is empty and cool before attempting this process.

The cotton core in kerosene lighters requires periodic extraction to prevent clogging and ensure consistent ignition. A 2021 study by the Consumer Product Safety Commission (CPSC) found that 18% of reported lighter malfunctions involved tangled or damaged wicks, often leading to failed ignition or fuel leaks. The cotton core’s absorbent properties are critical for storing and releasing kerosene (n-octane) evenly, as dry or matted fibers reduce combustion efficiency by up to 30%, per data from the National Fire Protection Association (NFPA). Additionally, the metal sleeve’s design—common in models like the Zippo and Bic—prevents accidental core displacement during use. Replacing the core every 50–100 uses, as recommended by lighter manufacturers, maintains optimal performance. For example, a 2019 analysis by SAE International noted that 62% of user-reported lighter failures stemmed from neglected wick maintenance, costing an average of $15–$25 in repairs. Proper core extraction prolongs device lifespan and reduces fire hazards, aligning with CPSC guidelines for safe fuel container handling.