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VM Carb rebuild questions: Storing rebuilt carbs? Replacement fuel T/tubes?

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    #16
    Are you following the tutorial?

    Because a few hours in the dip isn't nearly enough
    1978 GS 1000 (since new)
    1979 GS 1000 (The Fridge, superbike replica project)
    1978 GS 1000 (parts)
    1981 GS 850 (anyone want a project?)
    1981 GPZ 550 (backroad screamer)
    1970 450 Mk IIID (THUMP!)
    2007 DRz 400S
    1999 ATK 490ES
    1994 DR 350SES

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      #17
      Originally posted by Big T View Post
      Are you following the tutorial?

      Because a few hours in the dip isn't nearly enough
      I am. The tutorial doesn't mention dip time. I've always been told to never allow aluminum parts to soak over 4 hrs in carb dip as it can begin to eat away at the metal. The instructions on the can also state this.
      - 1983 GS850L ~ 30,000 miles and going up - Finally ready for a proper road trip!
      - 1977 GS750B - Sold but not forgotten

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        #18
        The carbs are make of a zinc alloy..... I think. Anyway, after 24 hours the worst you'll get is a white powdery substance here and there which comes off with light brushing with carb cleaner...
        Last edited by allojohn; 09-30-2019, 04:53 PM.
        -Mal

        "The only reason for time is so that everything doesn't happen at once." - B. Banzai
        ___________

        78 GS750E

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          #19
          Leaving the carbs in the dip for a long time tends to turn the parts dark. I advocate only leaving them in the minimum time necessary to clean them.
          Ed

          To measure is to know.

          Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

          Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

          Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

          KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

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            #20
            My carbs did get darker after a 24 hr dip. Sprayed with carb cleaner and air but they still weren't clean. Dipped again for 36 hrs. They got darker still but they were clean.
            Jordan

            1977 Suzuki GS750 (My first bike)
            2000 Kawasaki ZRX1100
            1973 BMW R75/5

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              #21
              Well it's taking a lot of effort to get these carbs clean and the further I go into them the more damage I find. Turns out all 4 choke plungers and bores are scored and worn. GS750E was kind enough to send me two spare choke plunger assemblies he had but even between the 6 I'm unsure if I have 4 in good enough condition, never-mind the damaged bores. Each float bowl drain plug slot is ruined and most of the JIS screws are are stripped. Long story short, I found a set that looked to be in good shape on ebay and ordered them. Unfortunately they got damaged in transit due to poor packaging (I sent a message to the seller, we'll see how that turns out...), but I should be able to replace the damaged components with some from my old carbs.

              Even with the shipping damage, these carbs appear to be in far better shape and aren't full of mud or old paint. I only took one apart so far to assess the condition and it looks great. I'll be cleaning and rebuilding over the next few weeks (I know, I'm slow. Lots going on).
              - 1983 GS850L ~ 30,000 miles and going up - Finally ready for a proper road trip!
              - 1977 GS750B - Sold but not forgotten

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