79 GS850 carb delema

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  • andyman119
    • Feb 2026

    #1

    79 GS850 carb delema

    I am rebuilding the motor on my 79 GS850. I have found a problem with one of the carb bodies. A former owner had tried to drill out the air screw. Bottom line, I need a new carb or used body I can rebuild. I know its a VM26SS but have had no luck in finding one or a set. I have seen lots of gs750"s but have been told they would not work. Can anyone give me a lead, advice, some knowledge into this problem. Thank You
  • srg

    #2
    I'd scour craigslist for part bikes. You can also post in the "classified" forums on here to see if anyone has one to sell.

    Comment

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

      #3
      the GS750 uses VM26SS carbs so there is no reason why they will not work. i dont know if the complete 750 rack will fit your bike but the carb bodies should be the same.
      1978 GS1085.

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

      Comment

      • Steve
        GS Whisperer
        • Jun 2005
        • 35924
        • southwest oHIo

        #4
        Which carb is it?

        If you only get one carb, make sure it's from the same position in the rack.

        .
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        mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
        hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
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        #2 son: 1980 GS1000G
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        Comment

        • andyman119

          #5
          Its the far one on the right if your sitting on the bike. I thought the 750 might fit as they have a lot of the same parts in the rebuild kit. But the complete assembly numbers are different. Not sure what the difference is...maybe someone can tell me . Will 750 carbs work ons 850?

          Comment

          • Big T
            Forum LongTimer
            Past Site Supporter
            Super Site Supporter
            • Mar 2005
            • 12391
            • West Slope, OR

            #6
            Yes, 750 or 1000 carbs will work

            What you need to do is:

            1. Post up your request for a #4 VM carb body in Parts-Wanted
            2. Check with PortDave - he's one of several members who have these parts
            3. Throw away any rebuild kit you have
            4. Read the carb cleaning tutorial on BassCliff's site
            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

            • andyman119

              #7
              If I used the 750.or 1000.carb, would I be better off changing out all 4 ? Are they exact replacements or do you have to make them work ?

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

                #8
                I have a ton of VM26 carbs. Which one do you need?

                Edit, I see it's #4. Want it?
                http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                Life is too short to ride an L.

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                • andyman119

                  #9
                  #4 but I want to be sure I wouldn't be better off on the long run buying a set before I buy anything. But thanks, I may take you up on that.

                  Comment

                  • Guest

                    #10
                    You shouldn't need a set. Get the body from

                    Comment

                    • Guest

                      #11
                      Oops - fat fingers! Get the body from Tom and transfer it to your rack.

                      Comment

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

                        #12
                        If you want a whole set I have that too.

                        Can rebuild them properly too, and if you really want it nice, can powdercoat the whole works.
                        http://img.photobucket.com/albums/v5...tatesMap-1.jpg

                        Life is too short to ride an L.

                        Comment

                        • andyman119

                          #13
                          sent pm to Tom. also, there is a fuel screw (needle) that comes in from the bottom. i couldnt find it in the diagrams. two of mine are chipped at the end. anyone know what part number this is or have any also?

                          Comment

                          • andyman119

                            #14
                            Thank you everyone.

                            Comment

                            • Big T
                              Forum LongTimer
                              Past Site Supporter
                              Super Site Supporter
                              • Mar 2005
                              • 12391
                              • West Slope, OR

                              #15
                              Originally posted by andyman119
                              sent pm to Tom. also, there is a fuel screw (needle) that comes in from the bottom. i couldnt find it in the diagrams. two of mine are chipped at the end. anyone know what part number this is or have any also?
                              Z1 has them in stock
                              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

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