I have an 81 heritage special I turned into a chop and have been having issues with it charging, it seems intermittent because one day I can ride it with no issue and the next it will die a block from home. battery will be dead as if it isn't charging, with a multi meter on the battery and revving it there is no charge, I made the harness using a tc bros harness modified to what I needed, Im fairly well versed in electrical diag and theory being a ford technician by trade but this has me stumped, I tested the rotor between the slip rings and have 5.5 ohms I checked between them and ground and its OL so that checks ok, I checked the resistance between any combination of the white wires coming from the stator and they are all .5 ohms so that's good from what I have read, I have checked the resistance of the wires to the brushes and they are all good, I have not checked the output of the whites while running because its cold and I don't have heat in the shop and the battery is dead now from the lack of charge this summer. but as far as I can tell those components are all good, checked the ground from the engine case to the frame and have .5 ohms at either battery neg or the ground post on the frame the only thing I noticed is when you check the resistance between the nut that holds rotor on and ground I have 1.6 ohms not sure why maybe someone could fill me in there, also between the whites and ground I have a very high resistance reading so that also from my research says it is good. any insight here would be greatly appreciated. I do have new brushes as well.