To add kerosene to a lighter, first disassemble the lighter by removing the fuel tank using a coin or specialized tool. Ensure the lighter is empty and dry. Pour kerosene slowly into the tank, avoiding overflow. Reassemble the lighter and test it by lighting the flame. For removal, disassemble the lighter, drain the tank completely, and let it air-dry for 24 hours to prevent fuel residue.

The process requires caution due to flammability risks. Kerosene’s high volatility (flash point: -45°C) increases fire hazards if mishandled. According to the National Fire Protection Association (NFPA), improper fuel handling accounts for 15% of home fires involving portable devices. A 2021 study by the Consumer Product Safety Commission (CPSC) found that 70% of lighter malfunctions are linked to incorrect fuel levels or residue, often causing leaks or explosions. Overfilling can damage internal seals, leading to fuel leakage, while underfilling results in poor ignition. Drying is critical; residual moisture accelerates fuel evaporation, creating unstable vapor mixtures. manufacturer guidelines, such as those from Zippo, emphasize 24-hour drying to ensure safe reassembly. Always use a well-ventilated area and avoid open flames during maintenance. Improper techniques may violate OSHA regulations, which mandate safe handling of flammable liquids under 29 CFR 1910.1200. Adhering to these steps minimizes risks and extends lighter lifespan.