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Display Mesage #116778


Re: Very strange "repair" (long)
Written by pogomann2002 on 9/25/2012 at 12:00 am

Hey Leland,
Once again the upside voltage thread begins! LOL for the rest of the gang, a few years ago I requested information from the group in trying to define an electrical malfunction where your voltmeter reads higher voltage at idle than at higher rpms, (upside down voltage)

The info we gathered at the time indicated that changing the R/R solved the issue for most, some just kept riding w/o and apparent issues. (such as Leland)

Again voltage does not indicate the strength of a battery, amperage is the true measure. So while using a clamp on DC ampmeter on my R/R output I noticed that the readings were negative which indicated that there was an issue most likely with the stator, this led to the discovery of the shorted stator connector (non '89 models)

Since the stator cannot produce greater amperage at idle eventually those with upside down voltage syndrome should eventually have battery issues. Riding style here has a great effect on the issue. The longer one runs at idle (city, stop and go) the sooner the battery will be drained down. For those who spend most of their riding time in motion (higher rpms) the better the battery health. (Leland)

I'm going to step into the "best guess" area here to say that the dead shorting of the battery may have done something to reset the R/R electronics back to their native function. Leland do you have the direct R/R to battery modification on this bike? (important since it bypasses the harness)

Just as an unrelated "I didn't know this could happen" earlier this summer a neighbor borrowed my battery charger to use on his boat battery. The battery was stone dead from winter storage and he hooked up the battery charger backwards. After two days of 2 amp charging he had changed the polarity of the battery. The starter ran backwards as well as the power trim motor. We left the interior and navigation lights on for a couple days and drained it stone dead again and charged with the correct cable placement. All is well months after.

Let the thread begin!

Best Pogo

Message Thread for message #116778

Leland Sheppard
9/23/2012, 12:00 am
Very strange "repair" (long)
Hi Coasters,I had a really weird one happen on the PCH ride a few days back.Tuesday, while heading north on CA49, we stopped for butt and potty breaks at North San Juan. When we got ready to leave and I went to start up

    goldwingman40
    9/23/2012, 12:00 am
    Re: Very strange "repair" (long)
    Leland,Exactly how do you hook your jumpers at the bike?Fred

    unlikelyloginname
    9/24/2012, 12:00 am
    Re: Very strange "repair" (long)
    Leland,Since you know better than to have loose or corroded connections at the battery, we can rule that out. Shorting the battery with the engine not running shouldn't affect anything other than the battery. I suppose it's possibl

    douglasvanb
    9/24/2012, 12:00 am
    Re: Very strange "repair" (long)
    Did I just feel my ears burning?On my PC, the previous owner put some wire from the battery through a small hole into the trunk. The ends are capped with some wire nuts. It has sat that way for five years since he installed it and was only

    Leland Sheppard
    9/25/2012, 12:00 am
    Re: Very strange "repair" (long)
    Hi Fred,

    dave_hiett
    9/25/2012, 12:00 am
    Re: Very strange "repair" (long)
    --- In ipcrc@yahoogroups.com, Leland Sheppard <leland@...> wrote:

    pogomann2002
    9/25/2012, 12:00 am
    Re: Very strange "repair" (long)
    Hey Leland,Once again the upside voltage thread begins! LOL for the rest of the gang, a few years ago I requested information from the group in trying to define an electrical malfunction where your voltmeter reads higher voltage at idle than at

    Leland Sheppard
    9/25/2012, 12:00 am
    Re: Very strange "repair" (long)
    Hi Seth,

    Leland Sheppard
    9/26/2012, 12:00 am
    Re: Very strange "repair" (long)
    Hi Pogo,When I originally had the upside down voltage problem, I swapped the R/R with a known good one and nothing changed.I do NOT have the direct wire mod to the R/R.I actually went out and bought a battery load te

    unlikelyloginname
    9/26/2012, 12:00 am
    Re: Very strange "repair" (long)
    --- In ipcrc@yahoogroups.com, Leland Sheppard <leland@...> wrote:

    pogomann2002
    9/26/2012, 12:00 am
    Re: Very strange "repair" (long)
    Hey Leland,I do remember the most of those details from back then but I don't remember if the stator was tested?? Seems like I'm sure you would have done this however I would ask that you run the stator tests again since it might be more

    alfr4d
    9/26/2012, 12:00 am
    Re: Very strange "repair" (long)
    Hello Coasters. How I read it, the ground has been in contact with 12 Volt and how many Amp? Alfred

    unlikelyloginname
    9/26/2012, 12:00 am
    Re: Very strange "repair" (long)
    --- In ipcrc@yahoogroups.com, "pogomann2002" <dedge@...> wrote:

    pogomann2002
    9/26/2012, 12:00 am
    Re: Very strange "repair" (long)
    Seth, Thanks for the overview and especially the moving pictures!!!way better than a Powerpoint or another phase graph. Another mechanical failure that leads to an open with no output is the soder connection at the "Y" overhea