Recent content by JohnnyRection

  1. J

    Alternator throwing 0 volts on 1978 CB750K

    That's exactly what I was saying I was going to test. Whether you are calling it field coil or field the wiring to provide the 12 volts passes through the solid state rectifier/regulator unit that I have that is pretty much new. I hooked up 12 volts to that unit that magnetizes the stator while...
  2. J

    Alternator throwing 0 volts on 1978 CB750K

    I went around the rectifier by not using it to charge the field coil and then tested the ac coming from the alternator. Just as I didn't hope for, the newest part of the system failed. I think I will go back to the original style of rectifier and regulator.
  3. J

    Alternator throwing 0 volts on 1978 CB750K

    I am bypassing the rectifier the by connecting the battery to the field coil, not the way you two are thinking. No AC volts would go in to anything. I am simply trying to test the alternator output as madmtnmotors suggested, with the alternator not connected to the system.
  4. J

    Alternator throwing 0 volts on 1978 CB750K

    I have tried three stators, all of which are about the same. Am I right that you have to have your field coil magnetized in order to have a proper stator output? I will test that just in case by running the bike with the rectifier bypass.
  5. J

    Alternator throwing 0 volts on 1978 CB750K

    I was able to get magnetization when I connected the field coil to the battery. So bad rectifier unit, right? I am probably going to go back to the original system of a separate regulator and rectifier.
  6. J

    Alternator throwing 0 volts on 1978 CB750K

    The field coil resistance was tested to ground as well but I do not feel any magnetism with the bike on. I have three stators and two field coils, all of which aren't working. I am thinking it may more likely be the regulator/rectifier unit so I will test that out next.
  7. J

    Alternator throwing 0 volts on 1978 CB750K

    I am having similar problems. I had a "tested good" stator I bought that was reading .002 volts while running in the bike. I decided I should return that so I cleaned up my old one that tested with good resistance (.6 ohm) and cleaned the rotor as well. This stator now puts out only .6 volts...
Back
Top