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VM22SS Fuel Tube O-Ring???

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    #16
    Z1 used to sell the center tee that can be used on the 550 VM22's, but if you give them that part number now, they incorrectly tell you that it crosses over to the same part number that fits the 750/1000 Z1 KZ1000 etc. it was actually the fuel tee that fit the dual inlet VM28 carbs from some KZ and Z1 models, which used no tubes only two tees between 1&2, and 3&4

    I had my customer dig up the invoice for the parts I had him order for his 550, which are installed on it still a year later and running great.

    This time around I had to use the ebay seller who has exact fits. Z1 still I believe has the fuel tubes that fit, but why don't try and bother arguing with their sales support staff, they are always right despite the units purchased over a year ago fitting the 550 vm22's and the part number they supposedly cross over to not fitting either application which I referenced their use for.



    Also, soaking the rubber coated tees and couplers in gas to make them swell and seal is a hack job last ditch effort to finish the job without getting the correct parts, in my opinion. If they need gas to seal, what do you do when you put your bike in storage for the winter? Pull the whole rack and soak it in gas and reinstall before ever turning the petcock or engine on? Or dismantle the carbs every spring to soak these to prevent a leak?


    I also have had one a week ago rip apart when removing it from the carb during a vm22 rebuild. and all of the old used spares I have here also have numerous cracks in them. This is a poor judgment call to use the original pieces unless they are the replaceable o-ring type. I strongly caution against this move, as it is a compromise, and too much is involved to dismantle the carbs to replace one it springs a leak or starts seeping fuel all over the outsides of the carb bodies.

    Do it right, do it once.
    '77 GS750 920cc heavily modded
    '97 Kawasaki KDX220R rugged terrain ripper!
    '99 Kawasaki KDX220R​ rebuild in progress
    '79 GS425stock
    PROJECTS:
    '77 Suzuki PE250 woods racer
    '77 GS550 740cc major mods
    '77 GS400 489cc racer build
    '76 Rickman CR1000 GS1000/1100
    '78 GS1000C/1100

    Comment


      #17
      Originally posted by Chuck78 View Post
      Z1 used to sell the center tee that can be used on the 550 VM22's, but if you give them that part number now, they incorrectly tell you that it crosses over to the same part number that fits the 750/1000 Z1 KZ1000 etc. it was actually the fuel tee that fit the dual inlet VM28 carbs from some KZ and Z1 models, which used no tubes only two tees between 1&2, and 3&4

      I had my customer dig up the invoice for the parts I had him order for his 550, which are installed on it still a year later and running great.

      This time around I had to use the ebay seller who has exact fits. Z1 still I believe has the fuel tubes that fit, but why don't try and bother arguing with their sales support staff, they are always right despite the units purchased over a year ago fitting the 550 vm22's and the part number they supposedly cross over to not fitting either application which I referenced their use for.



      Also, soaking the rubber coated tees and couplers in gas to make them swell and seal is a hack job last ditch effort to finish the job without getting the correct parts, in my opinion. If they need gas to seal, what do you do when you put your bike in storage for the winter? Pull the whole rack and soak it in gas and reinstall before ever turning the petcock or engine on? Or dismantle the carbs every spring to soak these to prevent a leak?


      I also have had one a week ago rip apart when removing it from the carb during a vm22 rebuild. and all of the old used spares I have here also have numerous cracks in them. This is a poor judgment call to use the original pieces unless they are the replaceable o-ring type. I strongly caution against this move, as it is a compromise, and too much is involved to dismantle the carbs to replace one it springs a leak or starts seeping fuel all over the outsides of the carb bodies.

      Do it right, do it once.
      If they ever fail again I'll replace them but 1 fix in 40 years and no problems for the last 15 years is a hack job??? ...really. I think that's pretty good actually. Change them if you want but maybe I'll wait another 10 years or so.
      '84 GS750EF (Oct 2015 BOM) '79 GS1000N (June 2007 BOM) My Flickr site http://www.flickr.com/photos/soates50/
      https://farm5.staticflickr.com/4306/35860327946_08fdd555ac_z.jpg

      Comment


        #18
        Same here Sandy.

        Chuck78, my 78 sits for about 4 months in the winter (unless I Polar Bear it). No leaks then. The Ts have to sit empty for many months to shrink
        Quick and simple fix, not sure why you think it's a hack job. It's not like I'm going to flip the bike I bought brand new 39 years ago.
        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

        Comment


          #19
          I should also add that the tee that had the bonded rubber sealing layer rip off and remain inside the carb was on a 9,000 mile 78GS550 that has been garage kept it's entire life... but in an Ohio climate (cold winters). I don't think I would trust any of them now if such a low mileage well kept example had this type of failure, and had very visible cracking in all of the other portions of the tees and fuel tube couplers. ESPECIALLY with all the bull$#!+ Ethanol garbage gas that these things are being subjected to now in the modern political/impractical age. Ethanol is well known to destroy old o-rings and seals that were made without having to test the affects of Ethanol exposure... Ethanol nowadays in gas could be the certain death of these things. I for one do not want to be responsible for fuel dripping down on a hot engine and possibly onto a hot exhaust...
          I'd strongly suggest always replacing those parts with the aluminum versions with replaceable modern o-rings, as the modern o-rings are far more likely to hold up to Ethanol without a doubt.
          '77 GS750 920cc heavily modded
          '97 Kawasaki KDX220R rugged terrain ripper!
          '99 Kawasaki KDX220R​ rebuild in progress
          '79 GS425stock
          PROJECTS:
          '77 Suzuki PE250 woods racer
          '77 GS550 740cc major mods
          '77 GS400 489cc racer build
          '76 Rickman CR1000 GS1000/1100
          '78 GS1000C/1100

          Comment


            #20
            FYI for future reference, the ebay seller who has these listed in great quantities is gunsbluemoon out of Belgrade, Montana.



            '77 GS750 920cc heavily modded
            '97 Kawasaki KDX220R rugged terrain ripper!
            '99 Kawasaki KDX220R​ rebuild in progress
            '79 GS425stock
            PROJECTS:
            '77 Suzuki PE250 woods racer
            '77 GS550 740cc major mods
            '77 GS400 489cc racer build
            '76 Rickman CR1000 GS1000/1100
            '78 GS1000C/1100

            Comment


              #21
              Originally posted by Chuck78 View Post
              FYI for future reference, the ebay seller who has these listed in great quantities is gunsbluemoon out of Belgrade, Montana.



              https://www.ebay.com/itm/282842101784
              Like I mentioned already, it's not anodized. It's going to corrode. He should be making those things from brass.

              BTW, I've made a few different fuel Tee's before, including one for a GS550. It wasn't hard if you have a lathe.

              The photo below shows one made for a KZ750...

              P1030580 by nessism, on Flickr
              Last edited by Nessism; 04-22-2018, 02:39 PM.
              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

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