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    Another Charging Issue

    ALRIGHT,

    Another charging issue... which has been plaguing the bike for some time.

    Reg/Rec has been replaced with high end brand (name escapes me at the moment), Stator was purchased and installed before I new the difference between a good and bad brand... I think it got good reviews back when I was purchasing it, spent around $30-45 on it I believe.

    The issue is riding the bike over long periods of time - went on a ride for about 1 hr and 40 min. About 45 min in I watched the charge drop from 15-16 to 14-15, then about an hour in charge dropped down to 11-12 and near dying.

    I was able to make it home the additional 30 min by turning the headlight off. I noticed the voltage drop when using blinkers as well, but it seemed to be able to recover but never climb above the 12 once the headlight was turned off. An added fun part was it was down-pouring half way through the ride...

    To say the least, I hate electrical... not my forte. Some of the insights I have gotten thus far are either bad stator or bad wires. Would the wires to start with be those which are connected to the battery to the Reg/Rec and the headlight? What would I be looking for when I test?

    Sorry for my lack of knowledge around electrical things... and thanks so much for your help!

    #2
    15-16 volts is over charging. You might have burnt up the stator. You can find the specs in the service manual for your bike but typically 14.5 volts is the max safe voltage.

    Standard rule of thumb is to purchase a SH775 and rewire your charging system to bypass the factory wiring. There is a simplified wiring schematic available which shows how to wire the system. Do this and if the charging system voltage is still low you have a junked stator. A high grade stator such as those sold by Rick's costs about $150.
    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


      #3
      Thanks for the quick response! I thought I had read ~14v was the max. So this means my reg/rec is not doing its job - this would be my third one I believe... Thought the one on there now was from DBs... but I really can't remember and can't find the receipt.

      Looking back I wish I would have done more research on the stator option, but that was almost 5 years ago now, what I wish I knew.

      Comment


        #4
        Oh and, if I am running 16v and progressively dying after a long ride but once the headlight is turned off its able to maintain, this would be a sign the stator was putting out that much voltage and therefore frying perhaps the battery? How does the reg/rec work to keep the stator from running that high?

        I have had problems with blowing headlights in the past - no issue this time?

        Comment


          #5
          Originally posted by rywilly View Post
          Oh and, if I am running 16v and progressively dying after a long ride but once the headlight is turned off its able to maintain, this would be a sign the stator was putting out that much voltage and therefore frying perhaps the battery? How does the reg/rec work to keep the stator from running that high?

          I have had problems with blowing headlights in the past - no issue this time?
          the regulator/rec has inbuilt electronics built in and should not allow more than 14.5 dc output. The stator produces AC voltage the rectifier then converts that to DC voltage.
          As all ready said get yourself a SH775 reg/rec ( be careful that you do not get a copy there's a lot about) bypass the Oem wiring if you do that and the charging is not correct then it's mr stator time.
          There is a simple explanation of the wiring here post 1 https://www.thegsresources.com/_foru...t=Sh775+wiring
          This is what I did
          This is using the Triumph link lead


          Triumph part# T2500676. http://www.2wheelpros.com/oem-parts/triumph-link-lead-regulator-t2500676-part.html


          Cut off the two small plugs then carefully split the harness so you have one plug with two brown and two black wires twist the Browns together likewise with the blacks so you now have a plug with one brown and one black so to speak.
          The brown connects to the red wire in the bikes harness where the original rectifier/regulator red connected to, know as the T connection on various posts on here.
          The black connects to the single point ground see many posts on here or just use the search facility for information.
          The three blacks on the other plug connect to the three wires that come from the stator it does not matter which wire connects to which ( there is no polarity)
          All joints where twisted together soldered and shrink wrapped.
          The two left over wires in the bikes harness can be taped up and tucked away as they were for the handle bar loop and are not in use now.

          This one looks the real thing "note" the model number on the rear https://www.ebay.com/itm/Polaris-RZR...4AAOSwodNc5haM

          Have a look quick eBay seems to change the links some how I can recommend this seller powersportsnation i and others have got SH775 s from him.
          Last edited by fastbysuzuki; 05-28-2019, 04:30 PM.
          The big guy up there rides a Suzuki (this I know)
          1981 gs850gx

          1999 RF900
          past bikes. RF900
          TL1000s
          Hayabusa
          gsx 750f x2
          197cc Francis Barnett
          various British nails

          Comment


            #6
            High end r/r and $30 stator- what could go wrong! Start over with new $30 stator, BUT get the SH-775 r/r as suggested .

            do some reading about why: once fixed, enjoy happy motoring

            1981 gs650L

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

            Comment


              #7
              Originally posted by rywilly View Post
              Thanks for the quick response! I thought I had read ~14v was the max. So this means my reg/rec is not doing its job - this would be my third one I believe... Thought the one on there now was from DBs... but I really can't remember and can't find the receipt.

              Looking back I wish I would have done more research on the stator option, but that was almost 5 years ago now, what I wish I knew.
              The DB Electrical R/Rs on Ebay are fake SH775.
              Jordan

              1977 Suzuki GS750 (My first bike)
              2000 Kawasaki ZRX1100
              1973 BMW R75/5

              Comment


                #8
                Ton's of fakes on ebay these days. Be sure to verify the unit has "SH775" printed on the top fin. Price is rising on them. It's hard to find good samples for less than $50 these days...but even at that, it's money well spent.
                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


                  #9
                  As stated before this SH775 is real and recommend the seller it's a good price grab it before it goes


                  the seller is powersportsnation make sure the link is correct as if it sells the eBay link could point to something that is not real
                  Last edited by fastbysuzuki; 05-31-2019, 06:47 AM.
                  The big guy up there rides a Suzuki (this I know)
                  1981 gs850gx

                  1999 RF900
                  past bikes. RF900
                  TL1000s
                  Hayabusa
                  gsx 750f x2
                  197cc Francis Barnett
                  various British nails

                  Comment


                    #10
                    Originally posted by fastbysuzuki View Post
                    As stated before this SH775 is real and recommend the seller it's a good price grab it before it goes


                    the seller is powersportsnation make sure the link is correct as if it sells the eBay link could point to something that is not real
                    Just the way that I like to see them.....dirty!
                    1981 gs650L

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

                    Comment


                      #11
                      Originally posted by tom203 View Post
                      Just the way that I like to see them.....dirty!
                      It does seem like every good used SH775 looks like it was pulled off a machine that was rescued from the bottom of a mud bog.
                      Rich
                      1982 GS 750TZ
                      2015 Triumph Tiger 1200

                      BikeCliff's / Charging System Sorted / Posting Pics
                      Destroy-Rebuild 750T/ Destroy-Rebuild part deux

                      Comment


                        #12
                        Just got some time to actually check it out. The guy put a SH633-12 RR on it...

                        Thanks for all the input, its awesome to have so many people willing to share their wisdom.

                        Also thanks for the ebay link. I googled one an found this at the DBelectrical website https://www.dbelectrical.com/product...2011-2014.html

                        Is this a good option? Thanks again

                        Comment


                          #13
                          Originally posted by rywilly View Post
                          Just got some time to actually check it out. The guy put a SH633-12 RR on it...

                          Thanks for all the input, its awesome to have so many people willing to share their wisdom.

                          Also thanks for the ebay link. I googled one an found this at the DBelectrical website https://www.dbelectrical.com/product...2011-2014.html

                          Is this a good option? Thanks again
                          No. As already mentioned that's a chinese knockoff of a Shindengen (Japanese company) R/R.
                          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


                            #14
                            Originally posted by rywilly View Post

                            Is this a good option? Thanks again
                            .NO, that is not a Shidengen Sh775, it just looks like one. You want the one on eBay posted by fasttby or one like it. Used(likely dirty) but genuine.
                            Rich
                            1982 GS 750TZ
                            2015 Triumph Tiger 1200

                            BikeCliff's / Charging System Sorted / Posting Pics
                            Destroy-Rebuild 750T/ Destroy-Rebuild part deux

                            Comment


                              #15
                              Okay, good to know. Heard DB was a good source, I'll try out the Ebay special. Thanks again.

                              Comment

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