K10 dual tanks -- what\'s broken? Hi All, 77 K10 with dual tanks. The problem that I'm having is that sometimes with the left fuel tank, even if there is gas in there, I will "run out of gas"! If there is gas in the right tank, I can dump a little down the carb and she fires back up, but it won't start on the left tank again. The interior switch is working (i.e., I can flip the switch from one tank to the other and the fuel gauge will register both tanks). This has happened twice already about 6 months apart /forums/images/graemlins/confused.gif What needs to be replaced? Thanks!