I was giving a old craftsman chainsaw model 917.353750 that doesn't run. I noticed laying in the bottom of the gas tank a tube with the fiter on the end. I flipped the chain saw over and it fell out. is the pick up where this hooks up at the top of gas tank where i need it hooked up to run the saw, or is it at the bottom where i will still get gas without it being connected. I assume the chainsaw would have to be split open to hook the fuel line back up?