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Tachometer Ratio

Discussion in 'XJ Technical Chat' started by Robert Osterberg, Nov 10, 2016.

  1. Robert Osterberg

    Robert Osterberg New Member

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    Hello guys!

    The question about tachometer ratio has been up before in a bunch of models of XJ:s but i can´t find it for my model, so: can anyone can tell me what ratio it is on the XJ650 4ko -81? i am planning to get me an aftermarket tacho.

    /Robert
     
    Robert Osterberg, Nov 10, 2016
    #1
  2. jayrodoh

    jayrodoh YimYam

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    Are you referring to speedometer ratio? Most aftermarket tachometers are electronic and you simply wire it in. If you have a mechanical tach, Chacal has a block off plug kit for the head where the cable attaches.
     
    jayrodoh, Nov 10, 2016
    #2
  3. Robert Osterberg

    Robert Osterberg New Member

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    Nope, Rpm. I will go for a specific mechanical model but there is a little jungle for me out there. :)
     
    Robert Osterberg, Nov 10, 2016
    #3
  4. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    IIRC it's 5:1, but might be 4:1
     
    k-moe, Nov 10, 2016
    #4
  5. jayrodoh

    jayrodoh YimYam

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    jayrodoh, Nov 11, 2016
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  6. jayrodoh

    jayrodoh YimYam

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    jayrodoh, Nov 11, 2016
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