I ran into a similar issue quite a few years ago now. Same thing, drive for a bit, motor would shut off, cold weather, hot weather. I did the whole thing, tune up, rebuilt the carb, blew air through the lines, fuel filters.
installed a Carter 4070 and that did the trick, for a while any way. Then the problem was back, but worse in some ways. I would drive halfway down the street and it would shut off. I pulled the tank, pulled the pick up and lo and behold, there was the problem. When I removed the sock from the pickup, the very end of the pick up tube had accumulated some lacquered up fuel that had over time hardened little by little reducing the id of the tube. The electric pump over came this issue, for a while anyway, by pressure and volume.
So when the tube became really really narrow, the motor would start on the fuel that had been in the line. It would run until the line was empty (because the electric pump was no longer receiving fuel to pump forward) so the motor would shut off.
Then it would sit, fuel would trickle back into the lines over the 15 -20 minutes I let it sit, and of course it would then start right up baffling me as to the problem.
So you might pull the pick up, make sure all the lines are clear, the pick up is clear and unobstructed. Also, and just a matter of personal opinion, I think those glass fuel filters are a fire waiting to happen and you might consider replacing it with a non-glass, non-plastic filter.
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Last edited by Dragsix; 05/23/2024 12:43 AM.
