replacing gas lines for weedeater model LT-17?

i bought new gas line for my weedaeter,but forgot how the lines hooked back up ,it has a primer bulb with two ports the carb has two ports-thelines coming out of gas tank has two lines(one is larger than the other). I JUST NEED A DIAGRAM TO SEE WHICH ONE HOOKS UP TO WHERE. THANKS IN ADVANCE RUSTY