Refilling fuel in your torch or lighter may not ... and check for proper butane flow by making sure the nozzle from the pump butane canister is fully engaged during refilling.

12 Butane Fuel Canisters New & Sealed Cartridges Automatically Reseal when Removed from Stove Notched Collar for easier Alignment to Stove For Use with Butane Backpack Camping Stoves ...

Well, you might want to watch this video of how to make a mini butane torch out of some ... air through the syringe, and gas through the bicycle pump nozzle, with a bit of pressure adjustment ...