New Stator and RR, no charge....

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  • 1_v8_merc
    • Mar 2026
    #1

    New Stator and RR, no charge....

    Ok guys I'm at a complete dead end with this bike.
    1978 gs750e.

    New stator and R/R, literally.....and bike will not charge!
    (bike burned a R/R, so I replaced both components)
    I've tested both components, no problems.

    I've gone nuts double-checking and cleaning grounds around the battery-cage area. I ran additional grounds from my R/R too.

    What else could cause this bike NOT to charge?
    Maybe there's a ground I'm missing on the bike somewhere thats critical?
    The bike runs ....however it just doesn't charge.


    I guess it's time to rip apart the wiring harness.
    Last edited by Guest; 07-21-2013, 09:59 AM.
    Tags: None
    • Badooka
      #2
      Is the battery able to take a charge?
      Possible dead cell.

        Comment

        • posplayr
          Forum LongTimer
          GSResource Superstar
          Past Site Supporter
          • Dec 2007
          • 23673
          • Tucson Az
          #3
          Do a quick test and report the results

            Comment

            • Steve
              GS Whisperer
              • Jun 2005
              • 35927
              • southwest oHIo
              #4
              Was your new stator an 18-pole unit or a 12-pole?

              It should have been a 12-pole.

              If you installed a newer 18-pole unit, there is absolutely NO way that will work.

              I'll bet that if you install a new 12-pole stator, it will work just fine.

              .
              sigpic
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                Comment

                • robertbarr
                  Forum Sage
                  Past Bard Award Winner
                  GSResource Superstar
                  • Sep 2005
                  • 2721
                  • Joliet, Illinois
                  #5
                  Originally posted by Steve
                  .

                  I'll bet that if you install a new 12-pole stator, it will work just fine.

                  .
                  Yep, I'd bet that's the problem. Are 12-pole stators even available anymore? I know one guy who searched forever and gave up -- he wound up putting a later model's rotor on there.
                  and God said, "Let there be air compressors!"
                  __________________________________________________ ______________________
                  2009 Suzuki DL650 V-Strom, 2004 HondaPotamus sigpic Git'cha O-ring Kits Here!

                    Comment

                    • tom203
                      Forum Guru
                      Past Site Supporter
                      • Aug 2010
                      • 8925
                      • Norway,Maine
                      #6
                      Originally posted by robertbarr
                      Yep, I'd bet that's the problem. Are 12-pole stators even available anymore? I know one guy who searched forever and gave up -- he wound up putting a later model's rotor on there.
                      Steve's stator guy should have easier time winding 12 pole.

                      I suspect there would be some output from 18 pole stator with wrong rotor, but it would be marginal and fail posplayr's tests.
                      1981 gs650L

                      "We are all born ignorant, but you have to work hard to stay stupid" Ben Franklin

                        Comment

                        • tas850g
                          Forum Sage
                          • Jun 2008
                          • 1678
                          • Jaffrey, NH
                          #7
                          Parts unlimited Catalog used to advertise they have a Ricks 12 pole stator BUT the years were up to somewhere around '81. We know that not to be the case. Must have been a typo.
                          1979 GS850G
                          2004 SV650N track bike
                          2005 TT-R125 pit bike
                          LRRS #246 / Northeast Cycles / Woodcraft / Armour Bodies / Hindle Exhaust / Central Mass Powersport

                          http://s327.photobucket.com/albums/k443/tas850g/

                            Comment

                            • Nessism
                              Forum LongTimer
                              GSResource Superstar
                              Past Site Supporter
                              Super Site Supporter
                              • Mar 2006
                              • 35808
                              • Torrance, CA
                              #8
                              You plugging the stator and R/R into the stock wire harness? If so, that's the problem. The stator should be wired directly to the R/R, bypassing the harness and it's convoluted and problematic routing. Ground the R/R to a solid frame point or the battery, and check the wiring harness for resistance losses on the R/R power output line. Jim Pos has the details.
                              Ed

                              To measure is to know.

                              Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

                              Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

                              Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

                              KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

                                Comment

                                • 1_v8_merc
                                  #9
                                  Alright thanks guys....I bet it's the stator.
                                  The one I threw in was from a 81 550...they looked different.

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