I have one of those butane lighters for lighting the woodstove that looks like a long, giant matchstick. It ran out and I am trying to fill it using a can of butane for refillable lighters. Is there a trick to it? I've pressed the butane can tip into the refill port a couple times but the lighter doesn't seem to be getting any fuel. Do you need to hold it a long time? Hold it upside down or right-side up? I've never done this!