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HSC32 82 xj750 carb body questions

Discussion in 'XJ Technical Chat' started by VTGanja420, Jul 25, 2016.

  1. VTGanja420

    VTGanja420 Member

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    so after melting the float pin tower trying to repair it, it left me with 2 options ( 3 but thats a new bike and i wanna avoid it now that i gotthe problem honed in) wither manufacture a new piece and pin it, or replace the body, but! this is where im confused. ive seen a few diagrams that look like the individual carbs come apart? is this possible/true? or do i gotta look for the whole quad bar?
     
    VTGanja420, Jul 25, 2016
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  2. VTGanja420

    VTGanja420 Member

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    XJ650 Maxim, Midnight Maxim, XJ650RJ Seca (non-turbo), XJ650 Euro all use HSC32 carbs (various versions)
    XJ750 all USA 1981-83 models use HSC32 version 5G200 (Seca) and 15R00 (Maxim and Midnight Maxim)
    XJ750 all Canadian 1981-83 models use HSC32 version 5H200 (Seca) and 15T00 (Maxim and Midnight Maxim)
    XJ750 UK/Europe 11M models, XJ750 Police models 24L and 37H use HSC32 version 5N100



    XJ750 all USA 1981-83 models use HSC32 version 5G200 (Seca) - i believe this is the model ( i dont know how to tell them apart tbh, if anyone knows how ill be alot more specific :) )
     
    VTGanja420, Jul 25, 2016
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  3. k-moe

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

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    The carbs are held together by mounting brackets. They come apart from the rack for servicing. You'll only need to replace the one, but make not of which one it is. #1 and #4 are unique, #2 and #3 are interchangeable with each other.
    You can use carb bodies (HSC32) from any '81-'83 XJ650 or XJ750, though the 650 bodies will need the jets and needle from your carb.
     
    k-moe, Jul 25, 2016
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  4. k-moe

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

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    post up pics of the damage. It may still be reparable.
     
    k-moe, Jul 25, 2016
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  5. VTGanja420

    VTGanja420 Member

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    lol you dont wanna see it xD the post is now aluminum slag and the seat where it broke is disfigured pretty bad :/ But!! it is the 2/3 carb that broke, 1 and 4 are still gorgeous
     
    VTGanja420, Jul 25, 2016
    #5
  6. k-moe

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

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    Pics.
     
    k-moe, Jul 25, 2016
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  7. VTGanja420

    VTGanja420 Member

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    VTGanja420, Jul 25, 2016
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  8. VTGanja420

    VTGanja420 Member

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    sec, gotta upload it to my photobucket
     
    VTGanja420, Jul 25, 2016
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  9. VTGanja420

    VTGanja420 Member

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    [​IMG]
    the idea is to put it on the standing mill and hone er square and make a post to pin in place, but if i can just replace it, ill try to avoid that headache
     
    VTGanja420, Jul 25, 2016
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  10. TheCrazyGnat

    TheCrazyGnat Well-Known Member

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    Damn, dude. What did that pillar say about your mama?
     
    TheCrazyGnat, Jul 25, 2016
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  11. VTGanja420

    VTGanja420 Member

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    lol, u dont wanna know :p
     
    VTGanja420, Jul 25, 2016
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  12. VTGanja420

    VTGanja420 Member

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    like, it started taking np, then once we got the filler rod to start beading it just melted to slag @,@
     
    VTGanja420, Jul 25, 2016
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  13. k-moe

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

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    That's what aluminum does without having proper heat control. That job calles for TIG, not Torch.

    You can try this: http://www.yamaha-triples.org/workshop/Mikuni_MKII_Post_Repair.pdf but you'll probalby have to make a through hole to have enough threads for the bolt to grab. Shouldn't be a problem if you use a sealant. Otherwise get a replacement carb body.
     
    k-moe, Jul 25, 2016
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  14. MiGhost

    MiGhost Well-Known Member

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    MiGhost, Jul 25, 2016
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  15. VTGanja420

    VTGanja420 Member

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    i posted 1 link to a ebay carb that might fit a few replies up, but i also noticed a 06 gsxr thats in my finance range @,@. im torn, if i cant find a replacement that i can garentee will fit i cant see putting myself through another wheeless week for a 50$ gamble :/


    oh also, it was tig not torch :/
     
    VTGanja420, Jul 25, 2016
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  16. VTGanja420

    VTGanja420 Member

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    im going to sleep on it and see if the guy locally gets back to me on a gsxr600 i noticed while searching for another replacement ( noticed a nice xj650 for 1500 aswell). gotta soul search, but i thank you for answering my inquiry just the same :)
     
    VTGanja420, Jul 25, 2016
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  17. k-moe

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

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    The gixer will need work too, and cause more traffic tickets.
     
    k-moe, Jul 25, 2016
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  18. Polock

    Polock Well-Known Member

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    even if you got it welded it would have broken again when the mill hit it
    [​IMG]
     
    Polock, Jul 25, 2016
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  19. k-moe

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

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    He hasn't got enough of a stub left to make a dovetail. Yours was the first repair I thought of @Polock.
     
    k-moe, Jul 25, 2016
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  20. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Yup, that body would work just fine, as MiGhost said....... And do the seals as he said as well
     
    hogfiddles, Jul 25, 2016
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  21. Jetfixer

    Jetfixer Well-Known Member

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    I bought a whole rack for my 750 a few months ago for 65.00 just missing diaphrams. My #1 throat was cracked P.O. did it. Now I have spare parts!!!
     
    Jetfixer, Jul 26, 2016
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  22. VTGanja420

    VTGanja420 Member

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    we manufactured an aluminum post that we pinned in, got it fired up ( still in parts, got a new bike in the process for a steal) but havent really played with it since. once i get a few more min free ill post up what we did :)
     
    VTGanja420, Jul 31, 2016
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  23. VTGanja420

    VTGanja420 Member

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    and sadly the first day with my new gs500f i got a speeding ticket @.@ ( R.I.P. spotless reccord) but i still enjoy the bike :p
     
    VTGanja420, Jul 31, 2016
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  24. k-moe

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

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    Told ya. :p
     
    k-moe, Jul 31, 2016
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  25. Rebem

    Rebem Member

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    Not sure if this will help, of even if it will work because I haven't fired mine up yet, but here is my pillar fix. I manufactured a new pillar and plate from 20x20 aluminium extrusion. I use the float seat bolt as the retaining mechanism and dropped the alu washer. Here are a couple of pics. The final design has a bend at the top to help with the limiter tab, not a hook like you see in the photos.
    Float Pillar 1.jpg Float Pillar 2.jpg
     
    Rebem, Jul 31, 2016
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  26. chacal

    chacal Moderator Moderator Supporting Vendor Premium Member

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    Very creative.
     
    chacal, Jul 31, 2016
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  27. k-moe

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

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    Nicely done. I like how you used the other float pillar as a register to maintain a parallel assembly.
     
    k-moe, Jul 31, 2016
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