Re: Does not start
Post a couple of photos please. 1980 should be an electronic distributor with two wires attached to the side of the distributor.
Intermittent problems are always the most difficult to diagnose. You do not say whether the engine will not turn over or simply will not fire when the problem occurs, SO: FIRST, Check the neutral interlock to be certain that the cam is centered in neutral and the switch is depressed. You can jump the two yellow wires together and see if that solves the problem. If not, However, a good place to check and relatively inexpensive would be to simply replace the ignition switch. If that does not solve the problem, then check all other wiring