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  1. #1
    CB750 New Member luwys's Avatar
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    Testing rectifier/regulator on cb750k 1981

    Hey guys so i recently got my honda cb750k and it runs beautifully but i ran into a charging issue early on turn out the rotor was bad and had to buy a replacement i since did so but the battery still isnít charging up to where it needs to be. Which is about 12-14v when reving rpm could this be my regulator/rectifier if so how can i test if its bad before i go out and buy a new one
    Thank you so so much!


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  2. #2
    CB750 Addict Wez_'s Avatar
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    Apr 2017
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    Enfield, CT
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    In the Clymers manual it tells you how to measure the resistance across the regulator/rectifier pins. I had charging problems and thought it was my rectifier. Turns out after measuring the resistances, it was both the rectifier and the stator that were measuring bad resistances. I don't have my manual on me here at work, but i'll get back to you sometime this weekend. I think I spent $100 on a combo from ebay and got everything I needed.

  3. #3
    CB750 New Member luwys's Avatar
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    Thanks man appreciate it ! And that would be awesome if you could i want to get my bike back up and rippin the road lol


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  4. #4
    CB750 Addict Wez_'s Avatar
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    use what you need:

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