while you are on the topic of the little male connector. Old Japanese cars often need a little modern pick me up here to take load off iginition switch
So, a 30 or 40A relay with a built in fuse in its front joey pocket be good.
Run nice fat wire from battery POS to 30 on relay
The female wire black/white trace goes to 86, instead of to starter solenoid from now on in
Wire 85 to a reliable earth
Nice fat wire, black with a white trace if you score one from a wreck from terminal 87 to the male spde on the starter solenoid
This set up means power from ignition is not loaded up with starter solenoid power, just light load to switch across 86 to earth 85 holding coil to bridge the heavier wire from battery to starter solenoid
This may fix your problem or prevent from occuring at a later stage
Edited by jono, 08 January 2018 - 05:15 AM.