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Thread: 85 K100RS battery removal

  1. #1

    85 K100RS battery removal

    Please be patient, I know this has come up in the past but searching the forum hasn't given me a solution, only mentions by others of similiar problem.
    To remove the battery on the '85 K100rs, Haynes says insert long screwdiver into clip access in bottom of storage box and move handle to front of bike to release clip. OK, did that (many times), didn't work, now how to trip the clip to release the storage box from computer actually? I don't want to force it but don't have a mental picture of what is happening at the clip so I am working blind.
    Thanks for any help.

  2. #2
    eaganj346
    Guest
    It's more like a metal tab that has to be pushed towards the front of the bike as you wiggle the connector loose.

    I don't have the K75 any more but it had the same arrangement. The first time I unhooked the connector to pull the battery I had the same sense that nothing was happening.

    Hopefully someone else will chime in with a picture or a better explanation.

    John

  3. #3
    3 Red Bricks
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    1. Remove seat.
    2. Remove left hand side cover (painted part that goes from tank along bottom edge of seat)
    3. Remove tool tray cover
    4. Take all the junk out of the tool tray
    5. Pull out on the front edge of the black cover on the left side of the tool tray below the frame rail and remove the cover
    6. Take a small screwdriver and insert in the hole in the floor of the tool tray. Pry the silver tab that is in the hole toward the back of the bike. While holding the tab back, pull out on the wire end of the connector that was exposed when you removed the side cover. Clear the hooked end of the front of the connector.
    7. Lift tool tray and computer up at rear.
    8. If you have the factory alarm in the back of the tool tray, remove the screws securing it to the tool tray and disconnect wires or see if there is enough slack in the wires to just lay the tool tray out of the way.
    9. Disconnect negative cable to battery first (install last). Remove positive cable last (install first).
    10. Remove two battery hold down screws and bracket.
    11. Remove vent tube at battery if so equipped. You will not use this tube with the sealed Odyssey, but leave tube in place for possible future use (you never know what kind of battery you might have to install in the middle of nowhere on a long trip).
    12. Remove battery.

    It took me longer to type this than it does to do it. It's VERY easy.



    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
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  4. #4
    Registered User
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    If you don't want to disconnect the motronic unit you can slide it out to the left side after removing the rubber clip on the right side. It pulls up and then the whole motronic unit will just slide out.

    Other wise 98Lee has the instructions very detailed on the procedure.
    Roy G.
    85 K100RT Ol Ruby "Gone but not forgotten"
    02 K1200LTC Hoss "Wrecked on 9/21/14"
    12 R1200RT

  5. #5
    Registered User JohnnyinTaos's Avatar
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    Get a bright flashlight, and shine it in there, both through the access hole and the connector side. Once you can see the clip, it'll be obvious what you need to do. Once you release it, you can rock the connector out, rear first, and then the front hook will release. Again, it really helps to be able to see that stuff. I've usually done this in dim sheds and such, and had several frustrating experiences, including not getting it seated properly when replacing it. 98lee has the sequence down exactly, but I sensed your problem was only with the connector. Good luck

    Johnny

  6. #6

    Thanks!

    Thank you very much! I think I can beat this clip now. One way or the other.

  7. #7
    chuck_donahue
    Guest
    no need to remove the seat, unless it is not a hinged seat. And after you disconect the hose and wires, you need to turn the battery on its side to get it out. Keep the vent up so it dosesn't leak.
    Last edited by chuck_donahue; 07-07-2009 at 10:53 PM. Reason: more info

  8. #8
    Registered User stanley83's Avatar
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    Thanks for the information!

    I acquired a K100rs last year and the battery died over the winter. I'm used to airheads, so I hadn't a clue how to get the battery out. As luck would have it, the battery is the same size as on my R75/6, and I had bought a new one last year whilst chasing down an electrical gremlin. The old battery was still good and, once I figured out how to get the old battery out, the K started right up. Thanks for instructions!
    Justin in Somerville, MA
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  9. #9
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    Ive owned a K75 (or 3) for 25 years and I can never remember which way the tab in the tool tray moves ,
    forward or rearward, to release the Electrical Cable. So I put one hand on the cable and use slight pressure on the cable until one way or another releases it. 25 years !

    Hows that for the Shade Tree following you around for your lifetime.

    Charlie

  10. #10
    Quote Originally Posted by 72r60/7 View Post
    I’ve owned a K75 (or 3) for 25 years and I can never remember which way the tab in the tool tray moves ,
    forward or rearward, to release the Electrical Cable. So I put one hand on the cable and use slight pressure on the cable until one way or another releases it. 25 years !

    How’s that for the Shade Tree following you around for your lifetime.

    Charlie
    Pretend somebody just insulted your daughter. Push back!
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  11. #11
    Registered User drneo66's Avatar
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    I got tired of trying to figure out which way it went - mine now has an arrow drawn in permanent marker.

    On my father's K75, I also could easily remove the whole "brain box" from the tray without having to release the plug.
    Current: 2007 BMW R1200RT
    Former: 1995 BMW K75S, 2009 BMW G650GS
    MOA Member #:150400, IBA#: 37558

  12. #12
    3 Red Bricks
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    It is a spring steel clip that clips over a bump on the end of the plug, so thinking logically, it should be pried AWAY from the plug. If you forget, (and haven't marked it) just think about what it does.




    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  13. #13
    JohnWC
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    Quote Originally Posted by colemanrobh View Post
    To remove the battery on the '85 K100rs, Haynes says insert long screwdiver into clip access in bottom of storage box and move handle to front of bike to release clip.
    This is the problem. The manual is backwards of what you have to actually do, as you have found out. I too struggled with this job a few years back, and asked for help with it on the forum. You really don't want to damage that computer, and following the manual, it just won't release. When I got my second K75, I had forgotten the direction to move the screwdriver. Now mine too has an arrow drawn on the tool tray.

  14. #14
    3 Red Bricks
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    They mean: if you use the hole as the fulcrum, moving the handle of the screwdriver to the front, the tip of the screwdriver moves the clip to the rear.

    But it is easier just to push the clip to the rear without using the screwdriver as a lever.



    LONG MAY YOUR BRICK FLY!

    Ride Safe, Ride Far, Ride Often

    Lee Fulton Forum Moderator
    3 Marakesh Red K75Ss
    Mine, Hers, Spare

  15. #15
    Quote Originally Posted by 98lee View Post
    They mean: if you use the hole as the fulcrum, moving the handle of the screwdriver to the front, the tip of the screwdriver moves the clip to the rear.

    But it is easier just to push the clip to the rear without using the screwdriver as a lever.



    Indeed!
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

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