FCR Durability?

Discussion in 'Thumpers' started by Les_Garten, Mar 19, 2013.

  1. Les_Garten

    Les_Garten Been here awhile

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    For the folks here running FCRs, are there any issues with durability or reliability? Are they known for any particular parts breaking?

    I figured you guys would know.
    #1
  2. BergDonk

    BergDonk Long timer

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    The only issue I'm aware of is that the anti rattle plate on the slide and fatigue and crack. The one on the MKI I fitted to my 501 Berg did this, but I caught it in time. The MKII on my DR650 shows no issues with 40,000 kms. My 650 Berg's MKII also looks fine at 260 hrs. I understand that the rollers on the slide can wear in the carb body, but if they are turning OK, should be OK. My carbs show no sign of slide or roller wear. Great carbs once setup.
    #2
  3. Les_Garten

    Les_Garten Been here awhile

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    That sounds like what I was hearing.
    #3
  4. BergDonk

    BergDonk Long timer

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    [​IMG]

    This is a pic of my MKI plate. I bent it deliberately where it cracked. Hard to spot in the formative stages.

    I suppose the other durability issue, or potentially anyway, is that the MKI has an exposed AP shaft, whereas the MKII is all inside. Both mine are all OK though.

    From UHE:
    Throttle plate cracks

    The throttle plate mounted on the back of the slide cracks in a circular motion around the dished depression in the design. The plate cracks because it can vibrate after a very large rubber ring has worn from the fluttering and from then on you can hear the plate 'clattering' likle a a handful of dominos on a kitchen table. If you replace the inexpensive rubber 'O' ring at this point it's a good cure and the plate will last interminably. You can make the plate clatter at anytime by holding your hand over the end of the silencer........!

    http://www.husaberg.org/wiki/index.php?title=Carburation
    #4
  5. Les_Garten

    Les_Garten Been here awhile

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    Thanx for the info and the link!

    Where is the best place to buy a few of these reasonably?
    #5
  6. davesupreme

    davesupreme grand poobah

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    i get parts here, good place.... parts are hard to get, you gotta go thru a dealer, and pretty much all of them come from Sudco in ca., and they don't wanna talk to you.....

    http://www.jetsrus.com/index.htm
    #6
  7. Les_Garten

    Les_Garten Been here awhile

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    That's who I have book marked as well. Thanx!
    #7
  8. Kawidad

    Kawidad Long timer

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    Just make sure you buy the later model ones, if searching fleabay or whatnot, the early ones were troublesome. They can be distinguished by the slide assembly being straight up and down, whereas the newer/better ones the slide is angled in relation to the carb body. :deal
    #8
  9. Les_Garten

    Les_Garten Been here awhile

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    Do have any links with PIX? Is this what is known as MK 1 and MK2?
    #9
  10. jesusgatos

    jesusgatos fishing with dynamite

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    You've got that backwards. The slantbodies are the old-style.
    #10