LTB an ultrasonic cleaner big enough to do a 4 carb rack...opinions/options?

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  • 80GS850GBob
    • Jan 2026

    #1

    LTB an ultrasonic cleaner big enough to do a 4 carb rack...opinions/options?

    Hi folks, as the title says, I'm looking to buy a large enough ultrasonic cleaner to douse a full 4 carb rack w/o having to fully take them apart and loose sync settings. Looks like something with a 12"x4"x6" wire cage, or bigger, would do.
    Anyone have one and recommend it...or one not to recommend. Been looking on the bay and found a few possibilities that my friends and I could use...a heated one looks very useful as well.
    Thanks-
  • Agemax
    Forum Guru
    • Apr 2008
    • 8371
    • plymouth uk

    #2
    you need to split the rack completely if you want to clean them PROPERLY. it is easy to resynch them after, so do the job properly.
    1978 GS1085.

    Just remember, an opinion without 3.14 is just an onion!

    Comment

    • 80GS850GBob

      #3
      Originally posted by Agemax
      you need to split the rack completely if you want to clean them PROPERLY. it is easy to resynch them after, so do the job properly.
      After removing the tops and slides, then all the air/gas jets and needles/seats/screws...how does complete removal of each carb from the rack make a better cleaning?...not flaming...just curious.

      Comment

      • Agemax
        Forum Guru
        • Apr 2008
        • 8371
        • plymouth uk

        #4
        probably get away with it on the BS (CV) carbs but it wouldn't work with the VM's.
        1978 GS1085.

        Just remember, an opinion without 3.14 is just an onion!

        Comment

        • tkent02
          Forum LongTimer
          Past Site Supporter
          • Jan 2006
          • 35571
          • Near South Park

          #5
          Sure it would if the whole rack would fit in the cleaner. Ultrasound is great.

          But there is no way to replace the tubes between carbs, and really taking them completely apart is stupid easy so there's no point in doing it that way.
          http://img.photobucket.com/albums/v5...tatesMap-1.jpg

          Life is too short to ride an L.

          Comment

          • Grimly
            Forum Guru
            Past Site Supporter
            Super Site Supporter
            • Sep 2012
            • 5761
            • Ireland

            #6
            Most carb racks you can hardly breathe on without having to make sure they're still in sync, so the idea of hoping to clean them as a unit without losing sync is a non-starter.
            Dave
            '79 GS850GN '80 GS850GT
            Only a dog knows why a motorcyclist sticks his head out of a car window

            Comment

            • Nessism
              Forum LongTimer
              GSResource Superstar
              Past Site Supporter
              Super Site Supporter
              • Mar 2006
              • 35787
              • Torrance, CA

              #7
              The O-rings on the fuel transfer tubes (between the carbs) are the ones that are typically in the worst shape. You have to take the carbs apart to replace these critical O-rings. You need to take the carbs apart to protect from breaking the float posts anyway so just get on with it.
              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

              Comment

              • steve murdoch
                Forum Guru
                Past Site Supporter
                • May 2004
                • 8491
                • St. Catharines, On.

                #8
                They have to be de-ganged to change all the the o-rings which is an absolute must for a proper cleaning.
                The carbs themselves could be clean but the old rubber o-rings will deteriorate and create air leaks or tiny rubber bits can clog jets.

                Sorry, Ed. I am a slow typist. haha.
                2@ \'78 GS1000

                Comment

                • JTGS850GL
                  Forum Guru
                  Past Site Supporter
                  • Aug 2013
                  • 9735
                  • GA

                  #9
                  Beyond all that's been said, the sheer cost of such a cleaner would be unacceptable. In order to get proper sonic cleaning on an object as large as a complete gang of carbs, you would need a unit that's pushing 600 watts @ 40hkz. You'd be looking at close to $2400 for a commercial built unit.
                  http://img633.imageshack.us/img633/811/douMvs.jpg
                  1980 GS1000GT (Daily rider with a 1983 1100G engine)
                  1998 Honda ST1100 (Daily long distance rider)
                  1982 GS850GLZ (Daily rider when the weather is crap)

                  Darn, with so many daily riders it's hard to decide which one to jump on next.;)

                  JTGS850GL aka Julius

                  GS Resource Greetings

                  Comment

                  • barnbiketom

                    #10
                    Originally posted by JTGS850GL
                    Beyond all that's been said, the sheer cost of such a cleaner would be unacceptable. In order to get proper sonic cleaning on an object as large as a complete gang of carbs, you would need a unit that's pushing 600 watts @ 40hkz. You'd be looking at close to $2400 for a commercial built unit.
                    Very Correct!!
                    2 grand versus 300 or so for one that will fit one carb at a time and do it properly.

                    Comment

                    • hannibal
                      Forum Sage
                      • Jun 2015
                      • 1033
                      • Washington DC

                      #11
                      Originally posted by 80GS850GBob
                      After removing the tops and slides, then all the air/gas jets and needles/seats/screws...how does complete removal of each carb from the rack make a better cleaning?...not flaming...just curious.
                      After removing jets, slides, and fuel and air screws, you'd have to resync anyway.
                      Jordan

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

                      Comment

                      • londonboards
                        Forum Sage
                        Past Site Supporter
                        • Aug 2012
                        • 1168
                        • Canterbury, UK

                        #12
                        Looks like you've been told!

                        Gang busters alert.
                        Richard
                        sigpic
                        GS1150 EF bought Jun 2015
                        GS1150 ES bought Mar 2014: ES Makeover Thread AND blog: Go to the Blog
                        GS1100 G (2) bought Aug 2013: Road Runner Project Thread AND blog: Go to the Blog
                        GS1100 G (1) Dad bought new 1985 (in rebuild) see: Dad's GS1100 G Rebuild AND blog: Go to the Blog
                        Previously owned: Suzuki GS750 EF (Canada), Suzuki GS750 (UK)(Avatar circa 1977), Yamaha XT500, Suzuki T500, Honda XL125, Garelli 50
                        Join the United Kingdom (UK) Suzuki GS Facebook Group here

                        Comment

                        • 80GS850GBob

                          #13
                          Originally posted by londonboards
                          Looks like you've been told!

                          Gang busters alert.
                          I already have a wife and mother-in-law....now it's something new to hear about{lol}...but "good advice" this time.

                          Comment

                          • 80GS850GBob

                            #14
                            Just for those who'd be interested-

                            ..I like the looks/cost of it.

                            Comment

                            • 80GS850GBob

                              #15
                              Originally posted by Grimly
                              Most carb racks you can hardly breathe on without having to make sure they're still in sync, so the idea of hoping to clean them as a unit without losing sync is a non-starter.
                              The Kawi H-2 carbs were my P.I.T.A. ... those 3 separate throttle cables never stayed sync'd...the 4th oiler one was easy.

                              Comment

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