6V ? Pertronix? Rigging carb with a gravity feed bottle, no fuel pump, will sure help to eliminate or identify carb. Eliminate or identify any up stream problem. Pump, lines, debris, venting lock..... Rig it up and you will know today.
Any lawn mower or boat tank hung high will do. Temp. Tank must be vented or open top. Did you observe squirt after is dies?
