You may also have a onoff switch of some sort. As you prepare to insert the butane into the valve on your lighter turn the can upside down to shift the butane closest to the fuel nozzle. Pin On Products Also keep watching to learn about the 2 quick tips how to clean out the nozzle and how to fix the piezo wir. . You should hear a hissing sound as the fuel and air escapes. If the butane can is either too big or too little the best thing you can do is use an adaptor to secure it. Usually manufacturers do not include butane fuel cans in the kit and you should order it on the site or buy in specialized stores. Top Rated Butane Fuel. Then insert the end of the butane cans stem into the refilling valve. There are two components in a can of butane. Then you can pump the butane fuel into the. Hold your lighter upside down and insert the butane tank tip into the fuel valve. Neon 7X Butane 300ML - New Fuel - Metal R