Refilling fuel in your torch or lighter may not happen at the most convenient time, but at least it’s easy. Yes, it can lead to buildup or clogging in your torch’s fuel lines and valves.
You can get a cheap screwdriver from Harbor Freight ... Check the bottom of the torch or lighter to find a small, round refill valve. Using your plastic poking implement, gently, yet firmly ...
Purge the air from the fuel tank. In an area with good ventilation, turn your refillable butane lighter in an upside-down position and press the refill valve for a few seconds. You may want to lay ...