Broken centerstand blues..

Discussion in 'Thumpers' started by firerigger, Sep 13, 2006.

  1. firerigger

    firerigger Trauma waiting to happen

    Joined:
    Jan 2, 2006
    Oddometer:
    808
    Location:
    Durango CO
    So I was trying to put the trusty Sixdays up on the centerstand tonight, when I heard a "pah-ting!" On inspection, I discovered that the left threaded stud on the centerstand had broken off. This is not good. Anybody have a spare centerstand they'd be willing to sell? Or suggestions on a repair plan? Thanks.
    #1
  2. creeper

    creeper Still alive...

    Joined:
    Dec 13, 2003
    Oddometer:
    10,718
    Location:
    Puget Sound
    Drill it out, put in a shoulder bolt.

    [​IMG]

    Ta Da.
    C
    #2
  3. firerigger

    firerigger Trauma waiting to happen

    Joined:
    Jan 2, 2006
    Oddometer:
    808
    Location:
    Durango CO
    Yeah, I've been looking at it and that would probably work. I just have to find the right bolt.... That could take some doing.
    #3
  4. meat popsicle

    meat popsicle Ignostic

    Joined:
    Feb 9, 2004
    Oddometer:
    14,552
    Location:
    Circumlocution Office of Little Dorrit
    Go to Canada.
    #4
  5. boxermoose

    boxermoose Regressive airhead Supporter

    Joined:
    Sep 18, 2003
    Oddometer:
    3,437
    Location:
    Gulf Coast TX
    Lowes stocks some shoulder bolts.

    Mine broke this summer and with some carefull hand drilling thru the old studs (leaving the old stud bosses intact to act like a bushing) I replaced with good old grade 8 bolts and nylock nuts.

    OK so far - I'd have used the shoulder bolts if i knew they were easy to get outside of an industrial supply house here in the US to save time and trouble
    #5
  6. bigtaters

    bigtaters Strommer

    Joined:
    Jan 2, 2005
    Oddometer:
    48
    Location:
    Las Vegas, NV
    I drilled mine out and replaced it with a grade 8 bolt. It's held for a few months now with no problems, even loaded down during a recent trip up the Blue Ridge Parkway. I'm going to have to look around for a shoulder bolt - that looks like a better way to go.
    #6
  7. fire_strom

    fire_strom Long timer

    Joined:
    Sep 21, 2004
    Oddometer:
    1,270
    Location:
    Durango, CO
    kroegers has a surprisingly good bolt selection.
    scott
    #7
  8. Riversage

    Riversage Adventurer

    Joined:
    May 12, 2009
    Oddometer:
    16
    Location:
    Durango, CO
    Unfortunately I find myself with this problem now too. Anyone know what size of shoulder bolt is needed?
    #8
  9. wrk2surf

    wrk2surf on the gas or brakes

    Joined:
    Dec 16, 2007
    Oddometer:
    8,707
    Location:
    THE exact center of California/Bass lake/Yosemite
    make sure the frame hole is not ovaled out and measure it
    #9
  10. Loadedagain

    Loadedagain making chips

    Joined:
    Jan 1, 2003
    Oddometer:
    26,763
    Location:
    West Vancouver, BC
    mine broke on a ride in 2005... a ride with creeper mr. shoulder bolt himself actually... i popped in a little m8 bolt i had in my tool kit and it worked fine. so fine i forgot about it. it still resides in the stand years (and two owners) later.
    #10
  11. XR650L_Dave

    XR650L_Dave Long timer

    Joined:
    Apr 3, 2006
    Oddometer:
    5,521
    Location:
    Near Cortland NY
    #11
  12. meat popsicle

    meat popsicle Ignostic

    Joined:
    Feb 9, 2004
    Oddometer:
    14,552
    Location:
    Circumlocution Office of Little Dorrit
    :lol3

    I can't even remember why I posted that bit above.
    #12
  13. Johnny Bouncewell

    Johnny Bouncewell Surly

    Joined:
    Aug 5, 2009
    Oddometer:
    382
    Location:
    Tijeras, NM
    Yo! I've got this problem and need to revive this thread dudes...


    So I just bought a 97 620 RXC for peanuts and have been going through it finding all the things wrong with it. First thing I noticed was the centerstand not passing the swingarm. So...a bit of digging and I found the right pivot on the stand nearly half way worn through and the frame mount totally ovalized. To get by, I fabbed a little collar that wrapped around the worn pivot but I will need to do something more substantial before too long. Though I am a bit embarrassed to say so, I ground down a little bit of the foot to help with clearance...I really wanted to ride the beast!

    Is it safe to drill out the ovalized frame mount and replace the pivot to a larger shouldered bolt? I'll try and get some pictures up tomorrow. Thanks to those who are wiser than I.
    #13
  14. XR650L_Dave

    XR650L_Dave Long timer

    Joined:
    Apr 3, 2006
    Oddometer:
    5,521
    Location:
    Near Cortland NY
    Depends on how much metal is left around it.

    You could have the hole welded and re-drill it.

    Dave
    #14
  15. Cigar Mike

    Cigar Mike Too Old and Too Slow

    Joined:
    Jan 16, 2007
    Oddometer:
    1,674
    Location:
    Centennial, Co
    Without being familiar with the model and how much of a tab is present? It may be possible to enlarge the hole enough to place the appropriate size nut in place and weld it to the tab. Now if you do not have access to a welder, it may not be such a good idea.

    Cigar Mike
    #15
  16. scottcolbath

    scottcolbath Long timer

    Joined:
    Oct 18, 2004
    Oddometer:
    10,085
    Location:
    Phoenix, Az.
    OK, so I have this issue mentioned by the OP. I could not find a shoulder bolt that works, so just to get the bike back together, I found an SAE bolt to toss on. It is actually not a bad fit and it has a small shoulder on it to act as the bearing surface at the pivot point. I had to remove a tiny amount of metal off the spring bow for the bolt to fit through.

    My problem.......I seem to forget how the springs and spring bow go back on. I've tried it the only two ways it seems to go on (it does go on where the stud broke off and the stud now is, correct?). The stand acts like it has no spring life in it. It won't stay up. I obviously have the bow on wrong. Anyone got a closeup pic of their 640 center stand I can see?

    BTW, is the spring bow's hole supposed to be perfectly round, or have an intent on it? I wondered if maybe the indent is key to my issues here.

    S.C.
    #16
  17. scottcolbath

    scottcolbath Long timer

    Joined:
    Oct 18, 2004
    Oddometer:
    10,085
    Location:
    Phoenix, Az.
    Never mind. I put on my glasses and saw the pivot stud located above the bolt hole for the center stand. :rofl

    S.C.
    #17
  18. meat popsicle

    meat popsicle Ignostic

    Joined:
    Feb 9, 2004
    Oddometer:
    14,552
    Location:
    Circumlocution Office of Little Dorrit
    At least you know how to search for the correct thread. :beer
    #18
  19. scottcolbath

    scottcolbath Long timer

    Joined:
    Oct 18, 2004
    Oddometer:
    10,085
    Location:
    Phoenix, Az.
    Yeah. I'm still laughing at myself about this. Sometimes I just need to slow down a little, look and think more before I actually do something.

    And I'll be checking out that website mentioned above for a proper pair of metric shoulder bolts to replace the one SAE bolt/nut and the other side's original welded stud. I may as well go all in on getting this done right.

    And while I'm thinking about it, both the original shouldered studs, and their respective holes on the frame had become a loose fit over the years. There is room for a little drilling of the frame holes to clean them up, and then fitting them with a matching shoulder bolt.

    S.C.
    #19
  20. meat popsicle

    meat popsicle Ignostic

    Joined:
    Feb 9, 2004
    Oddometer:
    14,552
    Location:
    Circumlocution Office of Little Dorrit
    Oh boy, another maintenance item...
    #20