Yall must be youngsters wanting to do this the hard way....
Take that same clear tubing and cut 8 inches off it...
then put the long piece into the tank through the normal fuel filler opening.
Place the other end in a 5 gallon fuel approved can.
Take the short piece and place it next to the long one at the top of the filler tube... place the rag around both of them to seal the air off... then blow into the short one. This will start the fuel running into the can... take the rag off so air pressure can get to the tank... thus you are syphoning the fuel out....