This just started in the last few days. My 61 Apache 10 with 235 6 starts and runs like a champ when cold. Once it warms up to operating temperature, it dies. It will restart, but only run a couple of seconds, then dies again. Let it cool off starts and runs good until it warms up. Put a fuel pump on ... no help. First thought it was starving for gas, now wonder if it's the coil or something else electrical. Any thoughts?