RR output question...

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  • Guest

    #1

    RR output question...

    Well, I'm getting seriously close to putting my Big Red 1100EX on the road

    Finally going through the entire wire harness & replacing bad connections and cleaning EVERYTHING. I even disassembled the ignition & handlebar switches to do a proper inspection & cleaning...

    When I rescued this poor girl last Summer, I noticed the stator/RR connections were burnt, along with a semi-melted connector under the tank.

    Pretty much got everything fixed, but I'm wondering if I have a bad RR.

    Electrical issues ain't my thing...

    I checked the stator output & it seems fine; around 20V at idle, ramping to 85-90V at 5000 RPM.

    However, when I check the voltage at the battery it's 15.4V at idle, and then drops to 14.4 at 5000 RPM.

    So there is the question - is normal? Or am I looking at a bad RR.

    Thanks,

    Mike
  • posplayr
    Forum LongTimer
    GSResource Superstar
    Past Site Supporter
    • Dec 2007
    • 23673
    • Tucson Az

    #2
    It sounds like you have a heavy duty stator putting out higher than normal voltage. That is causing a higher than normal R/R output. I have some questions:

    1.) Did you change the stator? What kind?

    2.) What R/R do you have?

    3.) What are the voltages from Steps A2 and A3 in the revised Stator Pages?


    http://www.thegsresources.com/statorpapers4.php

    Link to Revised PHASE A of Stator Pages:
    Last edited by posplayr; 11-16-2015, 06:41 PM.

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    • Guest

      #3
      Hi Jim,

      I don't know anything about the stator or RR, other than they were on the bike when I got her...

      I can tell you the wire colors from each do not appear to match the wiring diagram from the manual.

      The 3 stator leads are all black, the manual appears to assign them each a different color.

      Haven't used your revised checks as of yet - just did a quick voltage check per the manual. I want to take her out for a test spin & essentially do a shake down cruise, as I haven't yet ridden this one.

      At the moment I'm filling/bleeding the F&R brake lines - I've rebuilt all the calipers & MC and replaced all the lines with SS ones. Once I have brakes, I can test ride her !!!

      I'll do the other checks per your revised stator papers later today (I hope) & report back.

      Thanks

      Comment

      • bonanzadave
        Forum Guru
        Past Site Supporter
        • Jul 2006
        • 9623
        • Minnesota

        #4
        Is the RR grounded straight to the Battery - post ? I would do that. It may help stabilize the regulated voltage and prevent the battery from overcharging and boiling out the fluid.
        82 1100 EZ (red)

        "You co-opting words of KV only thickens the scent of your BS. A thief and a putter-on of airs most foul. " JEEPRUSTY

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        • Guest

          #5
          Originally posted by bonanzadave
          Is the RR grounded straight to the Battery - post ? I would do that. It may help stabilize the regulated voltage and prevent the battery from overcharging and boiling out the fluid.

          Yes, I've already run a dedicated ground to the RR - learned that trick a couple of bikes ago...

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          • posplayr
            Forum LongTimer
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            • Dec 2007
            • 23673
            • Tucson Az

            #6
            Originally posted by hikermikem
            Yes, I've already run a dedicated ground to the RR - learned that trick a couple of bikes ago...

            what about to frame ground?

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            • Guest

              #7
              Originally posted by posplayr
              what about to frame ground?

              That too...

              Comment

              • salty_monk
                Forum LongTimer
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                • Oct 2006
                • 14001
                • London, UK to Redondo Beach, California

                #8
                Sounds similar to the RR I had on my 750... Similar phenomenom with the voltages. I would change the RR.

                I can send you a known good one off a GS1000 if you want to try it for a check..

                Dan
                1980 GS1000G - Sold
                1978 GS1000E - Finished!
                1980 GS550E - Fixed & given to a friend
                1983 GS750ES Special - Sold
                2009 KLR 650 - Sold - gone to TX!
                1982 GS1100G - Rebuilt and finished. - Sold
                2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

                www.parasiticsanalytics.com

                TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

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                • Nessism
                  Forum LongTimer
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                  • Mar 2006
                  • 35787
                  • Torrance, CA

                  #9
                  The factory Suzuki manual allows up to 15.5 volts, but I don't think this is ideal. Sounds like the R/R is overworked and/or tired. It's never a waste to upgrade to something more modern like an FET model.
                  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

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                  • Guest

                    #10
                    Ya know, I checked the voltages again & they were lower. I will keep an eye on it for know...

                    What's an FET model RR?

                    I have a Honda one fron Duaneage on the way for my 850GLZ, that one's putting out low voltage and the bike struggles to start after riding.

                    Comment

                    • Guest

                      #11
                      Originally posted by salty_monk
                      I can send you a known good one off a GS1000 if you want to try it for a check..

                      Dan
                      Thanks Dan, I'm just going to watch it for the present time - thanks for the offer.

                      Those black superbike bars work nicely though...

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                      • crapwacker

                        #12
                        What size wire did you run for ground? I'm getting supplies...

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                        • Guest

                          #13
                          12 gage with soldered ring terminals...

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                          • Nessism
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                            #14
                            Originally posted by hikermikem
                            12 gage with soldered ring terminals...
                            14 gauge is more than enough but overkill doesn't hurt either.
                            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

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                            • Guest

                              #15
                              Originally posted by Nessism
                              14 gauge is more than enough but overkill doesn't hurt either.
                              Yeah, I hear that... however, it's what was on hand.

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