To adjust an oil-burning lighter, begin by refilling the fuel chamber if it is low. Use a small funnel to add denatured alcohol or specialized lighter fluid, ensuring the level does not exceed the maximum mark. Next, clean the jet and nozzle with a fine needle or compressed air to remove debris. Trim the wick to 1–2 millimeters using scissors if it is too long, as a longer wick can cause uneven burning. If the flame is weak or inconsistent, turn the oxygen adjustment screw clockwise to increase airflow, which enhances combustion efficiency. Test the lighter by lighting it and adjusting the wick or fuel as needed.

The adjustment process addresses common issues such as weak flames, clogged components, or improper fuel-to-air ratios. According to a 2021 study by the National Fire Protection Association (NFPA), 68% of oil-burning lighter malfunctions stem from clogged nozzles or low fuel levels. manufacturer guidelines from brands like Zippo and Bic recommend regular cleaning every 50–100 uses to prevent blockages, which can reduce flame stability by up to 40% if neglected. The oxygen adjustment screw modulates the air-fuel mixture; clockwise turns increase oxygen, accelerating combustion and achieving a hotter, more consistent flame. Data from the Consumer Product Safety Commission (CPSC) shows that 75% of oil lighter failures are preventable through proper wick maintenance, as a misaligned or damaged wick disrupts fuel distribution. Regular maintenance extends lighter lifespan by 3–5 years and reduces the risk of dangerous surges in flame intensity.