R1100GS what are these plugs under the rear seat?

Discussion in 'GS Boxers' started by delmartin, Apr 23, 2012.

  1. delmartin

    delmartin Been here awhile

    Joined:
    Apr 9, 2005
    Oddometer:
    115
    Location:
    Del Mar, CA Isles of Scilly, UK
    I have the aluminum rear rack off the bike to repair the cracks that seem to be common with the R11XXGS bikes and noticed two plugs under the rear seat. I can't find the source in my wiring diagram.

    So, does anyone know what they're use for? :ear

    Thanks.

    [​IMG]
    #1
  2. johnjen

    johnjen I've Been Resigned

    Joined:
    Nov 28, 2001
    Oddometer:
    16,248
    Location:
    Seattle
    Plug A looks like your diagnostic connector

    I dunno about B

    JJ
    #2
  3. Galloglaich

    Galloglaich Been here awhile

    Joined:
    Dec 15, 2010
    Oddometer:
    217
    Location:
    Scotland
    CO potentiometer?,cheers
    #3
  4. Poolside

    Poolside Syndicated

    Joined:
    Apr 1, 2003
    Oddometer:
    11,887
    Location:
    Long Beach, CA
    <BR>+1 and +1

    Diagnostic connector and Carbon Monoxide Potentiometer (aka CO Pot) connector.

    <BR>
    #4
  5. fivetimeson129

    fivetimeson129 Been here awhile

    Joined:
    Jun 24, 2011
    Oddometer:
    276
    Location:
    wrong place, wrong time
    delmartin, no cracking issues with our '95GS-bought new-just how much of an issue is this?
    #5
  6. dfwscotty

    dfwscotty Long timer

    Joined:
    Apr 9, 2006
    Oddometer:
    3,484
    Location:
    Denton, TX
    #6
  7. delmartin

    delmartin Been here awhile

    Joined:
    Apr 9, 2005
    Oddometer:
    115
    Location:
    Del Mar, CA Isles of Scilly, UK
    Thanks for the replies. I was hoping that I could tap into one of these plugs to run some rear facing LED's.

    Anyway, I welded up the cracks in the rear rack. What a PITA. I cleaned up the cracks and ground a small bevel to lay in the welding bead. Since the rack is cast aluminum, I had to heat up the entire casting before I attempted to weld it. Then I carefully welded the cracks. After the welds were complete, I place the rack into a pail of sand to cool naturally at a slow pace. Needless to say, the powder coating was very discolored after the heat processes.

    I ordered a set of these braces http://cariboucases.com/store/?name=Catalog&mode=i&item=000307 and will install them tomorrow when I re-install the rack.

    I installed the brackets today. Beautifully made parts, package includes all the fasteners required to do the job and very clear installation instructions. A top notch product for a good price.


    I think the reason the cracks developed is because the Hepco Becker top case that I use is cantilevered off the back of the rack. When it's loaded and I'm bouncing down a dirt road, the case tends to flip like the end of a fishing pole. Probably a bad idea to weigh down the case anyway since the weight is up high.

    Hope this helps with others who might have a cracked rear rack.

    [​IMG][/IMG]
    #7
  8. Schlug

    Schlug JockeyfullofBourbon

    Joined:
    Jan 23, 2006
    Oddometer:
    7,573
    Location:
    put something on and stay in that position.
    This happens frequently enough that every 1100 and 1150 ought to know about it. The aluminum isn't sturdy enough to hold that sort of mass especially when it is being worked up and down on a washboard dirt road.

    I have an extra rear luggage carrier next to the spare FD for the same reason.
    #8
  9. dfwscotty

    dfwscotty Long timer

    Joined:
    Apr 9, 2006
    Oddometer:
    3,484
    Location:
    Denton, TX
    Somewhere in here are several folks who have repaired the rear rack. I seem to remember that they didn't weld since that still leaves teh same issue as before. I think that some of them took the rack off and turned it upside down, put some heavy duty adhesive type compound, something like bondo or jb weld etc and then put a piece of barstock in there for rigidity and then added some more to help hold it in place.

    Maybe someone will refresh our memory.
    #9