Call all XR600R!!!

Discussion in 'Thumpers' started by CSMonte, Dec 8, 2008.

  1. MCCOYBOY

    MCCOYBOY Adventurer

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    Well I have the parts to build 2 kits. I would shorten the forks internally to match the Xr600 axle center to fork top length so the geometry of the bike remains accurate. I would also install the correct fork springs for the riders weight and valve the forks because the stock CRF forks are too harsh unless using the X model forks. I was thinking $600 give or take.
  2. RoostMaster

    RoostMaster Been here awhile

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    How does one go about shortening the forks internally?
  3. MCCOYBOY

    MCCOYBOY Adventurer

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    By installing a spacer on the back side of the closed chamber cartridge rod. Then you install 480mm springs and end up with 8mm of spring preload which is what I've found works best for the heavy xr.
  4. RoostMaster

    RoostMaster Been here awhile

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    Clever chap ! ta. :clap

  5. jgraham

    jgraham \m/etalhead

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    Phoenix AZ
    [​IMG]

    1st real ride on my XR this past weekend. 120 miles RT solo out Apache trail and back home over Four Peaks via El Oso.
  6. Callahan

    Callahan Long timer

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    Camping give aways coming soon.
    You need to "Dibs" it (them) here and then also PM me. You must do both.
    I am giving this stuff away but you pay the shipping.
  7. heart_of_darkness

    heart_of_darkness Adventurer

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    Feb 2, 2010
    Oddometer:
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    Location:
    lifting an XR600 from the NJ Pine Barrens sand
    Do you know any stock applications for those 480mm springs? Maybe a KTM?
  8. heart_of_darkness

    heart_of_darkness Adventurer

    Joined:
    Feb 2, 2010
    Oddometer:
    99
    Location:
    lifting an XR600 from the NJ Pine Barrens sand
    How is the rebound needle removed from the shock shaft?
  9. MCCOYBOY

    MCCOYBOY Adventurer

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    Jan 17, 2012
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    I either order them custom made from Cannon Racecraft or put the stock springs in my spring rate tester and compress them to 480mm and apply heat to one end till it holds it's new 480mm length. The rate usually increases .01kg/mm when you do the heat to size trick because the number of active coils is reduced.
  10. MCCOYBOY

    MCCOYBOY Adventurer

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    Jan 17, 2012
    Oddometer:
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    You remove the clevis to remove the adjustment rod but to remove the actual tapered needle that controls the rebound/compression bleed you have to CAREFULLY remove the shock shaft peening and have a special end nut to hold it in when reassembling it.
  11. beechum1

    beechum1 Dandole Gas al Burro

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    I'm driving. PM me I'll send the fiche and service sheets. I've sent enough links out someone else may be able to give them to you before I get back.
  12. OneTireFryer

    OneTireFryer Adventurer

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    First time post here,

    My first and only XR600R was bought new in 1985; I was but a wee lad of 15. Mowed a lot of lawns and washed a bunch of dishes, it was worth every ounce of trouble this bike got me into. Many a bike has passed through the stable but this one is still here. Now my 15-year-old sons feet can touch the ground, he has decided that it’s his. So this gives me an excuse to build a 628 (would have done it before but the 85 is not a great candidate due to parts being a little bit different then the newer models). Found a 1991 XR600R near by that is in good enough shape to start with. The question I have is, should I continue looking for a later year bike. Is there a set of years that are preferable? I read all 604 pages of this thread and it seems that 1991 on have good part availability and swap-ability. Not like my old duel carb set up…

    Thanks for any input!:ear
  13. JAB

    JAB Unsprung Weight

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    1991 and newer are all pretty much the same. In that range, look for wear and tear, accessories and features you want. Good luck.
  14. mcma111

    mcma111 Long timer

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    In 1991 Honda installed a disc rear brake. The 1991 and 1992 have a 15mm front axle. The 1993 and later have a 17mm axle just like the XR650l which came out in '93.

    Aside from graphics and colors they are all the same.

    BTW... Three of the four XR600 motors that I have worked on in the last couple of months all had bad gears in the transmission. Second and third gears. Two engines had scored cylinders from gear material taking a ride with the piston requiring an overbore. I have extinguished my transmission spares supply. I have to actually buy a gear for a motor that is on the bench right now.
  15. mcma111

    mcma111 Long timer

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    I have seen so many of these bad second gears.



    [​IMG]
  16. mcma111

    mcma111 Long timer

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    Getting ready to build another XR600 motor. Waiting for a main shaft second gear to show up along with a Wiseco ring set. Gotta weld up the counter shaft case guard mounting points.

    Bead blasted the cases and applied some Dupli-Color ceramic engine paint.

    [​IMG]
  17. 2manyrides

    2manyrides shifty charactor

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    [​IMG]

    My gear on steve's bench. 96 600r
    Make sure ya get a chance to take her through the gears !

    And listen to if they're singing
  18. bigtrailie

    bigtrailie Pursuing happiness

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    Jackson, MI
    So...the obvious question must be asked. How can we prevent this from happening to our 2nd gear? What causes this condition?
  19. mountaincadre

    mountaincadre Been here awhile

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    Mid Calder,Scotland
    Sorry for the o/t but what prep work did you do to those casings, they have come up pretty good.:eek1
  20. mcma111

    mcma111 Long timer

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    Popped all of the bearings and seals out, washed 'em down with solvent and then soap to get rid of the solvent residue. Took them to work where I bead blasted them. Home where I cleaned the cases again to get rid of all blast residue, wash them again. Put out in the yard in the sun to get them nice and warm and then I primed them and top coated them. The stator, clutch and rocker covers got a coat of clear to shine 'em up even more.

    A whole lot of work for an engine that I'll be selling.