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    Sad news...

    Well I was about to finish rebuilding my carbs when I noticed the slide on carb 2 won't go in so I found out that's why the linkage wouldn't work it's been in a fire...so I thought the carb was warped...so went to the classic motorcycle shop who's gonna do my electric work and they confirmed it along with the previous broken choke tube...they said it's better to buy a new set...it's just so discouraging if it isn't one thing it's another with this build...

    #2
    Sorry I got off topic...is there any upgrade carbs I can get for a good price or am I better off with the vm26s?

    Comment


      #3
      What bike do you have ?
      Larry D
      1980 GS450S
      1981 GS450S
      2003 Heritage Softtail

      Comment


        #4
        VM26's are common and cheap. You can post here in the WTB forum for a carb body too. In the grand scheme something like you describe is just a minor obstacle that goes along with keeping a 40 year old bike on the road.
        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


          #5
          Its a 78 gs1000

          Comment


            #6
            Yea but this is part of a list of things...and even tho it's cheap...it adds up along with all I got to get for my build

            Comment


              #7
              Probably just need the #2 carb body. There is a plastic piece that keeps the slide from rotating. You may try to dress it a bit and clean the groove in the slide. Attach a picture of the bore if you get a chance.
              1978 GS 1000 (pods, V&H 4 to 1, Dyna S, Dyna coils, stage 3 jet kit, Progressive springs, relay mod, 530 chain, Honda regulator, clutch basket welded and shimmed)
              1970 Honda C70

              Comment


                #8
                There isn't a plastic kidney bean shaped part with the alignment post on VM carbs. You are thinking of CV carbs. VMs have the pin molded down inside the slide tower.
                MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                Comment


                  #9
                  Originally posted by Bjones89 View Post
                  Yea but this is part of a list of things...and even tho it's cheap...it adds up along with all I got to get for my build
                  We've all been there. It's part of the experience. Once it's completed you'll have a fun, reliable bike you can be proud of.
                  https://drive.google.com/open?id=0B9zH8w8Civs8ejBJWjdvYi1LNTg&resourcekey=0-hlJp0Yc4K_VN9g7Jyy4KQg&authuser=fussbucket_1%40msn.com&usp=drive_fs
                  1983 GS750ED-Horsetraded for the Ironhead
                  1981 HD XLH

                  Drew's 850 L Restoration

                  Drew's 83 750E Project

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                    #10
                    Customer of mine just dropped 1300 just in parts to resurrect a 79 Honda CB750K. Needed EVERYTHING from fork seals to new intake and airbox rubber and even a rotor rewind so it would charge. But like I told him, its all needed stuff for a 39 year old bike and once its done its god for the next 20 or 30 years. The initial tally kina sucks a little but most of the parts wont need replaced and then its just routine maintenance to be one.
                    MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                    1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                    NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                    I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                    Comment


                      #11
                      20180307_132755.jpg
                      See location of plastic that align the slide on a VM carb.
                      1978 GS 1000 (pods, V&H 4 to 1, Dyna S, Dyna coils, stage 3 jet kit, Progressive springs, relay mod, 530 chain, Honda regulator, clutch basket welded and shimmed)
                      1970 Honda C70

                      Comment


                        #12
                        Chuck
                        This is the plastic bit I was referring. Enough heat could damage it.
                        1978 GS 1000 (pods, V&H 4 to 1, Dyna S, Dyna coils, stage 3 jet kit, Progressive springs, relay mod, 530 chain, Honda regulator, clutch basket welded and shimmed)
                        1970 Honda C70

                        Comment


                          #13
                          It looks and feels a lot like its a metal pin to me. I have used steel wool down the bores to clean them free of crud and don't recall wearing any off. I will however take one out of the bin and take a better look. As I recall Suzuki indexed the slides on CV carbs by having that little tab on the diaphrams set into the recess on the carb body. I do Know that Keihin carbs like Honda uses have a grove in the slide that rides on the protrusion off the kidney bean shaped air jet cover.
                          MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                          1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                          NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                          I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                          Comment


                            #14
                            It is not metal but some sort of plastic. You can actually see light penetrate if in bright sunlight or using a good flashlight.
                            1978 GS 1000 (pods, V&H 4 to 1, Dyna S, Dyna coils, stage 3 jet kit, Progressive springs, relay mod, 530 chain, Honda regulator, clutch basket welded and shimmed)
                            1970 Honda C70

                            Comment


                              #15
                              Yes definitely translucent plastic indexing pin type piece molded into the carb slide bore side on the gs550/750/850 kz650/900/1000/Z1 Mikuni VM carbs...
                              that definitely can melt and distort.
                              Have you tried to make any adjustments to that with a razor blade or a small carbide type cutter tip on a Dremel tool? Does it slide in smoothly until it hits that plastic pin which is probably melted?


                              That is much more likely than the whole carb body distorting. I have seen the carb bodies just get corroded and the slide gets totally seized in there. Several bikes actually, that had sat outside forever. Sometimes I have freed them up, a few I have not been able to. The one by that caught on fire, it was actually the melted uni air filter pod foam which had gotten sucked into the carbs and was the culprit for jamming up the slides. It melted and hit the slides, then when twisting the throttle open after the fire was out, the slides got stuck in the up position. Previous owner had KZ1000 carbs on a GS750 with poorly adjusted floats or bad float needles or bad petcock, which flooded the bike that was backfiring like crazy due to valves never being adjusted. Caught it on fire. Luckily the tank did not turn into a lethal bomb.
                              Then my buddy got a bike that was $1300 the week before, now "on sale for $200!" I proceeded to rebuilt it for him with about $600 in parts, not including tires. And I gave him a 4 into 1 V&H & a gas tank I had that a deer made a huge knee dent in the left side... the other tank was badly distorted. $75 parts bike for wiring harness and carb rack...
                              '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

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