I have a 1991 Fatboy, Just lately when I go to start it I have got to push the starter switch three or four time before anything happens. It doesn't click or do anything but it will start after a few times of hitting the starting switch. I have put in a new starter switch thinking it would solve my problem but it didn't
Do you need to remove the oil tank to get to the relay, I can see it but I can't get to it. I will also give this a try Thanks.
I had a similar problem. After cleaning the clean connections, I put the accessory lead (for the air pump) on top of the battery connection (rather than below it). All is fine. Good luck.