testing a starter switch

[1930artdeco]

Ok, I have an issue with my Y block running-or not running. for some reason the car will fire off and immediately die. It was recommended to jumper the ballast resistor and see if it still ran. I jumpered it and it ran for a few seconds so I shut it down-which is good as the jumper wire was hot. Great, I ordered a replacement resistor and swapped it out. Tried last night and she did the same thing fire/die.

So what is the best way to test my starter switch? I will test the new ballast resistor to see what I get for numbers. This is holding me up from doing other tests on her.

Thanks,

Mike