If your talking about a magneto type distributor, I have no knowledge of how they work. It may be time to take it to a shop that can do some testing of your ignition components. It almost seems that something is heating up & then breaking contact. (ie. multiple starts without incident) & then suddenly not getting spark to the plugs. (ie. not starting & waiting thru a cool down period , in which you start the process again.) It is obvious that this procedure will eventually worsen over time & will reveal the culprit. In the meantime you have a vehicle that cannot be trusted & will leave you stranded on occasion. This is why I suggest you get some expert help for your problem. Jon