BMW R65 ignition control mounting?

Discussion in 'Old's Cool' started by MZRider, Sep 8, 2011.

  1. MZRider

    MZRider Neo-Luddite

    Joined:
    Oct 21, 2007
    Oddometer:
    781
    Location:
    Western MD
    I'm working on an '82 R65 that has the larger upgraded ignition control unit as shown in the diagram below:
    [​IMG]

    It was zip-tied to the frame with a chunk of rubber between it and the frame. So, I bought the correct mounting bracket as shown but can't figure out where it mounts to. There are two places with screw holes with the same center-to-center measurement, but neither positions it so that the plug doesn't interfere with the frame or main harness.

    [​IMG]

    Has anyone run into this before? Where does the bracket mount? Do I need to drill holes in a frame tube to mount it? Any help would be greatly appreciated!
    #1
  2. Airhead Wrangler

    Airhead Wrangler Adios Mexico

    Joined:
    Mar 4, 2008
    Oddometer:
    6,752
    Location:
    Back in Seattle, FINALLY
    it mounts vertically on the flat plate just aft of the voltage regulator (the shiny box with red tape on it. Or maybe it's the one in front of the regulator. I can't remember and I don't have that ignition system anymore. It's one of those two and it definitely is oriented vertically.
    #2
  3. MZRider

    MZRider Neo-Luddite

    Joined:
    Oct 21, 2007
    Oddometer:
    781
    Location:
    Western MD
    Won't fit either place - believe me, I've tried. Aft of the v/r the control unit's plug hits the frame, there's not enough harness length to turn it so the plug faces the outside and a relay socket mounts there. Forward of the v/r (where the original ignition unit mounted) there's not enough room either (hits the underside of the tank).
    #3
  4. Wirespokes

    Wirespokes Beemerholics Anonymous

    Joined:
    Jul 26, 2002
    Oddometer:
    8,581
    Location:
    Jackson's Bottom Oregon
    I believe mine mounts aft of the voltage regulator. But the mount doesn't look anything like you've pictured. Mine is an aluminum L shaped piece and the control unit mounts horizontally.

    You might have better luck posing your question on the R65 Forum.

    http://www.bmwr65.org/
    #4
  5. MZRider

    MZRider Neo-Luddite

    Joined:
    Oct 21, 2007
    Oddometer:
    781
    Location:
    Western MD
    Decided to stop wasting time trying to figure out the BMW bracket and just made my own out of a piece of stainless steel I had. Just like yours, it's L shaped and mounts the control unit horizontal just aft of the coil.

    Thanks for the link to the R65 forum, didn't know such a thing existed.
    #5