R1100rt elect. Gremlins, help please!

Discussion in 'Road Warriors' started by facetjoint, Oct 27, 2013.

  1. facetjoint

    facetjoint TONKA

    Joined:
    Jan 7, 2010
    Oddometer:
    5,607
    Location:
    Phx. AZ. The land of shake and bake
    My 97 R1100RT started doing something strange today. When I touch the brake pedal or the hand brake. The battery light comes on in the instrument cluster. Plus the tach. goes to zero! Release the brake. The light goes out and the tach bounces back to engine speed indicated. Everything else electrically seems to work as it should.

    Any ideas please?
    Thanks Bill
    #1
  2. Cogswell

    Cogswell Spudly Adventurer

    Joined:
    Jan 3, 2005
    Oddometer:
    4,790
    Location:
    Riding with my pal Richard Cranium
    Are the battery cables secured properly ?


    Mike
    #2
  3. the_gr8t_waldo

    the_gr8t_waldo Long timer

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    Feb 28, 2006
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    tacoma warshington
    shooting off the hip- you've lost a ground...have you done any work recently
    ?
    #3
  4. anonny

    anonny What could go wrong?

    Joined:
    Mar 20, 2007
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    Beautiful Revelstoke BC
    I vaguely remember this is a product of a bad battery causing a low voltage condition. Try a fresh battery or a jumper to a good battery and see if that cures it.
    #4
  5. JimVonBaden

    JimVonBaden "Cool" Aid!

    Joined:
    Feb 11, 2005
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    56,193
    Location:
    Alexandria, VA
    :nod

    Common issue. There is a cluster of ground wires near the RID that gets corroded. It causes all kinds of odd things just like this.

    Jim :brow
    #5
  6. facetjoint

    facetjoint TONKA

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    Jan 7, 2010
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    Location:
    Phx. AZ. The land of shake and bake
    Wow, thanks to all of the responses. The batt. is a WESTCO AGM batt. It is always on the BMW OEM battery maintainer when the bike is not being ridden. I have not done any work to the bike recently. The last time I rode the bike was Labor Day, and that was about a 400 mile ride. The bike has not been wet, rained on, or washed for a long time. I.E. possible corrosion. As far as a loose connection at the battery? The bike starts and runs fine and keeps up with the head light and the running lights.

    I don't mind working on the bike, but I hate wrestling with the damn Tupper Ware.
    #6
  7. AnthonyIRL

    AnthonyIRL n00b

    Joined:
    Nov 15, 2013
    Oddometer:
    1
    I found that fuse number 1 was blown. I replaced it and bingo! BTW I noticed that the blown fuse on my bike was a 15A (Blue fuse) whereas I note that it's a 4A in a diagram I found.
    #7
  8. facetjoint

    facetjoint TONKA

    Joined:
    Jan 7, 2010
    Oddometer:
    5,607
    Location:
    Phx. AZ. The land of shake and bake
    I'm gonna' try and pull that nice soft Lazy Boy Corbin seat off tomorrow and take a looky see! I did notice on Thursday I had to take the bike to Phx. and the turn signals both left and right would blink correctly then they would start blinking reap rapidly!

    Thanks Bill
    #8
  9. airstreamer1

    airstreamer1 n00b

    Joined:
    Jan 24, 2013
    Oddometer:
    9
    Location:
    Mi. south east boarder
    You found it. Same thing happened to me and it was fuse 1. Replace the fuse and fixed. My fuse one blew because I shorted the Givi contacts accidentally.
    #9