ssrhinehart
CB750 New member
I have a 1978 CB750K. I recently did a complete engine rebuild. 3 days after the rebuild was complete, the battery went completely dead. I tried to charge the battery and it would not charge, failed. I cranked the bike and checked the voltage from the stator and it had no AC voltage on any of the wires. I pulled the stator and field coil and benched tested with a ohm meter. Results were: Stator 1.0 ohms on lead 1, .9 ohms on lead 2, .9 ohms on lead 3. That to me is fine (I think??) Field Coil test: 7.9 ohms. That is fine also.
Here are my questions. 1) Why do I not have AC voltage? 2) What roll is my rotor playing in this charging system as it had no brushes to create any type of magnetic field. Where is it getting its magnetic field? Could this be why I have no AC voltage. Any solutions? HELP!!!
Here are my questions. 1) Why do I not have AC voltage? 2) What roll is my rotor playing in this charging system as it had no brushes to create any type of magnetic field. Where is it getting its magnetic field? Could this be why I have no AC voltage. Any solutions? HELP!!!