Check your F650GS or Dakar Forks

Discussion in 'Thumpers' started by WayneC, Oct 9, 2008.

  1. WayneC

    WayneC Long timer

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    There has been much talk about the forks on the early F650GS & Dakar forks in the thread

    Crash in Destruction Bay

    http://www.advrider.com/forums/showthread.php?t=371650

    It is easy check which forks you have courtesy of the composite pic from squarewheels. The only known failures are the old style

    http://www.advrider.com/forums/showpost.php?p=7633376&postcount=92

    The forks on the left are the old type, the forks on the right are the new type. Both have the same BMW Part No.

    The interesting part is we are not sure when the new type were introduced into production. Initially it was thought June 2003 but we now know of one machine built December 2002 with the newer style strengthened fork legs.

    Thanks to the posts here we seem to have narrowed the changeover to Oct 2002.

    You can check the production date of any BMW by decoding the VIN and there is a handy web site available to do so.

    http://www.bmw-z1.com/VIN/VINdecode-e.cgi

    It would be of assistance if people could post the results into this thread to narrow the production range of the machines with the earlier casting. Only post the production date and which type of casting the machine has

    It would also be prudent for owners of machines with old style castings to refer any concerns they may have to BMW to satisfy themselves of the safety of these castings
    #1
  2. WayneC

    WayneC Long timer

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    My own machine which had a failure

    F650GS Dakar Production Date 2002 / 7 - Old Style
    #2
  3. cbxtc6

    cbxtc6 On my Way...

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    This is from Giddyupgirl's '01 F650GS:

    [​IMG]
    #3
  4. BykMyk

    BykMyk Been here awhile

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    Just looked at my bike (Dakar), manufacture date 2002/06, old style forks.
    #4
  5. stuckinmud

    stuckinmud all the time.

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    I have a 0402. Looks like the old style too. A little history on these forks. My bike has 7000 easy miles. Not much off road till now. I'm the new owner and plan to ride it as intended. :eek1

    [​IMG]
    #5
  6. michnus

    michnus Lucky bastard

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    Will this also affect the Funduro models?
    #6
  7. bluepoof

    bluepoof insert pithy saying here

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    Old style forks
    #7
  8. kwh

    kwh Fat Hairy Git

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    I don't believe so - they had different forks.
    #8
  9. WayneC

    WayneC Long timer

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    Re funduro

    I checked the part Numbers online and it is a different part number so no they should not be affected. I am not sure but dont think they are showa forks, can anyone else confirm that ?
    #9
  10. WayneC

    WayneC Long timer

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    sgk3 - Old Style - RHS Failed - production date - June 2002
    #10
  11. skibum_1260

    skibum_1260 Been here awhile

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    thats why i put a set of yamaha 450 forks on mine, fraction of the cost of the wp set, and handles like a new bike and alot lighter!
    #11
  12. face scrape 2001

    face scrape 2001 avatar of Nullarbor graffiti

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    Although there is a difference to the outside appearance, I don't see that there is much diff. at all where it counts, ie where the wheel holding part comes into the tubular part. F'instance, the above pics (post 1 of this thread) the cracked parting could easily follow the new moulding .
    Has the alloy a thicker wall in this place, around the staunchion?:dunno
    Interesting thread, I'll ask around.
    #12
  13. GSBS

    GSBS FunHog

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    Just looked at my forks and comparing to the photos mine (03 Dakar) has the less beefy, older forks.

    Interesting that the Yamaha forks can be used. Can you share details on where you bought and how much it costs?

    Did you have to modify the steering head at all?
    #13
  14. kwh

    kwh Fat Hairy Git

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    If you have an '03 bike, would you mind feeding your VIN into the checking tool and telling us what your 'build date' was?

    Cheers!
    #14
  15. GSBS

    GSBS FunHog

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    got this response:

    "Sorry, We could not process your request.
    Reason : Request was rejected from this IP address"
    #15
  16. SimpleSimon

    SimpleSimon Aspiring advrider

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    +2
    #16
  17. kwh

    kwh Fat Hairy Git

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    That's not good! Do you want to PM me the last 7 digits of your VIN and I'll run the number for you?
    #17
  18. GSBS

    GSBS FunHog

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    with my numbers
    #18
  19. skibum_1260

    skibum_1260 Been here awhile

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    i picked up a whole front end(yz450f, but most of the yamaha dirt bikes are the same ie 250, 426, 450 etc.), wheel(excel), brake caliper, forks, and triple clamps of e bay for about 200 bucks, rebuilt the forks with new seals heavier oil and heavier springs, i did have to trim some off the fairing i guess you would call it as the yamaha clamps are alot wider, and i only had to take about .010 thousands off the steering stem on the lower bearing i think it was(i did this last winter, i should have documented this alot better for you guys, sorry!) and the other stock f650gs bearing was perfect, only cost me about 300 bucks for everything and that includes an excel wheel! let me know if you need any more info and ill try and help ya out, the forks are longer then the stock dakar forks fyi, and i measured each whole assembly and the yamaha front end saved 15lbs off the bike.
    #19
  20. kwh

    kwh Fat Hairy Git

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    GSBS: F650GS Dakar with old style forks - Production date 2002/06
    #20