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83 xj750 - forks 43mm

Discussion in 'XJ Technical Chat' started by CaptHeavy, Jun 8, 2019.

  1. CaptHeavy

    CaptHeavy Member

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    ive got a cheap pair of calipers and wondering if they’re reading correctly. Trying to get a new headlight setup.

    Thanks
     
    CaptHeavy, Jun 8, 2019
    #1
  2. k-moe

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

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    When was the last time you had the calipers checked for accuracy?
    The upper fork tubes are 36mm OD.

    A dime is 1.35mm thick (measured across the diameter). If your calipers don't read a dime accurately then you need a better pair. Neiko makes a very good hobby-grade set that sell for less than $20.
     
    Last edited: Jun 8, 2019
    k-moe, Jun 8, 2019
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  3. XJ550H

    XJ550H Well-Known Member Premium Member

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    XJ550H, Jun 9, 2019
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  4. CaptHeavy

    CaptHeavy Member

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    Great, thanks
     
    CaptHeavy, Jun 9, 2019
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  5. CaptHeavy

    CaptHeavy Member

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    It does have a zero button, close it all the way down hit the zero button and you’re good to go. But yeah, I guess they’re fubar
     
    CaptHeavy, Jun 9, 2019
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  6. XJ550H

    XJ550H Well-Known Member Premium Member

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    when did you change the battery last?
     
    XJ550H, Jun 9, 2019
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  7. CaptHeavy

    CaptHeavy Member

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    They’re fairly new. 6mos at most.

    Once I got home (I’m on overnight shift at the moment) I didn’t have a dime around but I cross referenced the calipers to drill bits. The calipers nailed every one of them. Went back over to the bike and yes the inner forks are 36mm but the upper forks are 43mm (or was it 42 I’m forgetting) where I would be mounting brackets would be there, not the chrome forks.

    I’m no old school biker (or really a biker at all I just bought the thing and chopped it up to make it how I wanted it) and may have used the wrong words to describe where I’m talking about. The fork tubes between the triples.

    Thanks for the help guys
     
    CaptHeavy, Jun 9, 2019
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  8. XJ550H

    XJ550H Well-Known Member Premium Member

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    XJ550H, Jun 9, 2019
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  9. CaptHeavy

    CaptHeavy Member

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    The section I’m talking about isn’t even included in that diagram. What are the tubes between the triples called?
     
    CaptHeavy, Jun 9, 2019
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  10. XJ550H

    XJ550H Well-Known Member Premium Member

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    XJ550H, Jun 9, 2019
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  11. XJ550H

    XJ550H Well-Known Member Premium Member

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    XJ550H, Jun 9, 2019
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  12. XJ550H

    XJ550H Well-Known Member Premium Member

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    see post below for link
     
    Last edited: Jun 9, 2019
    XJ550H, Jun 9, 2019
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  13. k-moe

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

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    I think that you have a Midnight Maxim and are measuring the fork shrouds. They slip right off when you remove the forks from the triple clamps.

    Hmm....is modifying a Midnight Maxim a sin around here? I forget.

    If that is your bike, then it's to late to worry about that anyway.

    The headlight bucket isn't OEM, but the bracket is.
     
    Last edited: Jun 9, 2019
    k-moe, Jun 9, 2019
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  14. XJ550H

    XJ550H Well-Known Member Premium Member

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    XJ550H, Jun 9, 2019
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  15. CaptHeavy

    CaptHeavy Member

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    Definitely a sin, but I’m cool with it!

    Okay so they’re called fork shrouds! Gotcha. Mine are measuring 43mm and I will be buying some new brackets to install a new headlight. The entire bike is going to get gone thru and painted over the summer. Not much is stock.
     
    CaptHeavy, Jun 9, 2019
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  16. CaptHeavy

    CaptHeavy Member

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    CaptHeavy, Jun 9, 2019
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  17. k-moe

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

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    You'll want to mount the headlight bracket to the fork tubes, which will require removing the shrouds. The shrouds are purely cosmetic and will not hold up to having anything mounted to them.
     
    k-moe, Jun 9, 2019
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  18. CaptHeavy

    CaptHeavy Member

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    Sounds good, I’ll be doing that when I rebuild the forks in the coming months
     
    CaptHeavy, Jun 9, 2019
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