Testing The Charging System

Discussion in 'Electrical' started by wrenchbender, Jul 14, 2011.

  1. wrenchbender

    wrenchbender New Member

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    Out of ideas Charging system. I've replaced stator and regulator performed all tests that Glider suggested in the Self Help Tips but still no voltage at battery. I even removed paint under the regulator to make sure I had a good ground. Cleaned all 4 ends of battery leads. any ideas sure would help.
     
    Last edited by a moderator: Jul 14, 2011
  2. Hoople

    Hoople Account Removed

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    What do you mean by no voltage? The meter has to read something.

    I would think there also has to be some kind of breaker or fuse between the regulator and Battery for protection in-case the regulator should internally short out. (in order to prevent a entire meltdown)

    Is there one?

    Have you already performed an AC output voltage check of the stator in stand-alone mode with the engine running.
     
  3. glider

    glider Veteran Member

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  4. wrenchbender

    wrenchbender New Member

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    Ok I was wrong saying NO Voltage, I'am reading battery voltage but not a thing off the charging system. Is there a fuse somewhere I don't know about? That would make since.
     
  5. Hoople

    Hoople Account Removed

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    Closest manual I have to your bike is a 1990 Softail and it looks like back then there was just 1 main breaker to protect everything. So if the bike starts, there is current going through the breaker. On this manual, there are no other breakers in the charging circuit.

    I would check the AC output of the stator. Disconnect the stator from the regulator and see if your have about 50 AC volts at ~2800 RPM.

    Was the replacement regulator brand new or a "used good" unit.
     
  6. wrenchbender

    wrenchbender New Member

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    All I can think of is that I got a bad regulator, I thought I had a bad ground, so I jumped from reg housing to a good ground and no help. Checked stator voltage and getting 35 volt out and nothing but battery voltage at the battery. I guess I'll be eatting that regulator, i'am sure there won't take it back.