Push your pin into the little hole at the bottom of the bic lighter.
How to fill a bic lighter with butane. Push pin plug step 1: It has been years since i used a lighter. If the lighter slips while you're filling it, it will spray butane out and could very easily ignite.
To do this insert the butane can nozzle on the open fork and press until the lighter is. Believe it or not, you can actually refill those, too! Yes, you can refill a bic butane lighter.
Insert the wire or straightened paper clip under the fork to keep it open. You can tell that the lighter is full because the butane will start to leak. Refill the lighter with butane.
Open valve at bottom of lighter. To hold the fork open, place a wire or straightened paper clip under it. Get a can of lighter.
To do so, press the butane can butane nozzle against the open fork until the lighter.