Desperate! Help me find a 1975 CB750 brake switch.

Discussion in 'Motorbike Technical Discussion' started by Colbat, Apr 27, 2004.

  1. Colbat

    Colbat Guest

    Gentlemen, I am in a bit of a pinch. For the past year and a half I have
    been trying to find a replacement for a 1975 Honda CB750 brake pressure
    switch. This switch taps into the front hydraulic brake line via a tee
    fitting. When the front brake is applied, pressure in the brake line closes
    the circuit and illuminates the rear stoplight bulb. I have taken some close
    up pictures of the part and posted them on my website at the following link: Pressure Switch/CB750 brake switch.htm

    After more than 30 years of service, this factory original pressure switch
    finally called it quits. Attempts to revive the switch with solvents failed.
    I searched for a similar part at a Harley Davidson dealer but they were
    unable to provide a suitable replacement. Furthermore, there are no part
    recycling yards near me.

    My mechanic suggests replacing the entire brake line assembly with a modern
    system. However, I am resolved to preserve the motorcycle's authenticity and
    therefore reluctant to permit a modification on that scale. Is there an
    online parts supplier or a phone or mail order service that can lead to a
    replacement for said elusive switch? If you know such a service or if you
    can offer some general suggestions, please send an email to:

    I am also willing to pay a reasonable fee to any person who can successfully
    track down the correct part.

    Thanks, Kerry

    You can see photos of the motorcycle itself here:

    The wondrously distinctive "Ponch and Jon" stylings of this Honda can be
    attributed to the original and single previous owner. You guessed it, a
    California Highway Patrol officer.
    Colbat, Apr 27, 2004
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  2. Loads of Hondas used the same switch. I'm amazed you can't find a used
    one - hell, I've just sold two.
    The Older Gentleman, Apr 27, 2004
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  3. Colbat

    TPS Guest

    I don't know if you've already found these sites, but you could look into
    Retrobikes (
    or David Silver Spares (

    Good luck!
    TPS, Apr 27, 2004
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