Announcement

Collapse
No announcement yet.

Got a carb syncing tool. This is what it told me.

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    #31
    Originally posted by Rich82GS750TZ View Post
    hopefully, you've kept track of the bolts, or put them in a cardboard "map". 2 of the bolts are a different length , 45mm. The other 14 are 40mm.

    I did, I drew a rough outline of the valve cover and poked holes, then placed the screws in their corresponding hole. I'd post a picture, but the website keeps saying "upload failed."
    1980 GS550E

    Comment


      #32
      You're getting there, though.
      Valve clearances need done first, and after the ignition is sorted out too (that's done, isn't it?) and the carbs are cleaned properly - that's the time to set up the gauges.
      I have a set of dial gauges like those and they've been rock-solid reliable for 30 years. Every time I bring them out I check them for zero (pop off the front lens - it just pulls up with the shroud that fits over the body of the gauge) and slightly twist the zero-ing screw. Zero-ing gauges used to be a common thing, and still is in many applications. Not everything is digital, even now.
      Next step is to get some aquarium air tubing and make up a harness with three aquarium T-pieces, four damping clamps/ valves (again aquarium) and connect all the gauges to a common vacuum port - the one for the vacuum petcock, for example, and start the engine up, leaving it at a steady fast idle - about 2000 rpm. If any of the gauges read more than slightly different from the others, use the zeroing screw to bring that one into sync.
      That's the gauges synced with each other.

      Now you can dispense with the zero-ing harness and connect them to their individual ports on the carbs and your'e good to go - adjust away as you find.
      Last edited by Grimly; 05-13-2020, 08:15 PM.
      ---- Dave

      Only a dog knows why a motorcyclist sticks his head out of a car window

      Comment


        #33
        Here's what I got when I checked the valve shims:

        Intake #1
        Clearance: ----
        Shim: 2.70

        Intake #2
        Clearance: ----
        Shim: 2.70

        Intake #3
        Clearance: ----
        Shim: 2.65

        Intake #4
        Clearance: ----
        Shim: 2.60X

        Exhaust #1
        Clearance: ----
        Shim: 2.55

        Exhaust #2
        Clearance: ----
        Shim: 2.65

        Exhaust #3
        Clearance: ----
        Shim: 2.60X

        Exhaust #4
        Clearance: ----
        Shim: 2.55

        As you can see, there is no clearance, even for my thinnest blade.
        Should I start by going 5 down? I can swap a couple of them around and see if that helps.
        1980 GS550E

        Comment


          #34
          Originally posted by ZombiePotatoSalad View Post
          Here's what I got when I checked the valve shims:

          Intake #1
          Clearance: ----
          Shim: 2.70

          Intake #2
          Clearance: ----
          Shim: 2.70

          Intake #3
          Clearance: ----
          Shim: 2.65

          Intake #4
          Clearance: ----
          Shim: 2.60X

          Exhaust #1
          Clearance: ----
          Shim: 2.55

          Exhaust #2
          Clearance: ----
          Shim: 2.65

          Exhaust #3
          Clearance: ----
          Shim: 2.60X

          Exhaust #4
          Clearance: ----
          Shim: 2.55

          As you can see, there is no clearance, even for my thinnest blade.
          Should I start by going 5 down? I can swap a couple of them around and see if that helps.
          It's a bit odd to have all of them so tight. Maybe post a pic how you positioned the cams when you checked.
          Roger

          '83 GS850G Daily rider
          '82 GS1100GK Work in (slow) progress

          Comment


            #35
            As the manual suggests: One lobe pointing forward, the other pointing up.
            I don't think this bike was maintained very well. The gasket is probably the original one, or at least pretty old. It tore in a couple places as I was removing the cover, and it looks... melted?
            Here's a picture I took before I started messing with the shims: https://cdn.discordapp.com/attachmen...513_132053.jpg
            Last edited by ZombiePotatoSalad; 05-13-2020, 06:28 PM.
            1980 GS550E

            Comment


              #36
              Originally posted by ZombiePotatoSalad View Post
              Here's a picture I took before I started messing with the shims: https://cdn.discordapp.com/attachmen...513_132053.jpg
              Pic didn't come through.

              Originally posted by ZombiePotatoSalad View Post
              I'd post a picture, but the website keeps saying "upload failed."
              I've been getting that message a lot the past few days.
              1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

              2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

              Comment


                #37
                Originally posted by ZombiePotatoSalad View Post
                As the manual suggests: One lobe pointing forward, the other pointing up.
                I don't think this bike was maintained very well. The gasket is probably the original one, or at least pretty old. It tore in a couple places as I was removing the cover, and it looks... melted?
                Here's a picture I took before I started messing with the shims: https://cdn.discordapp.com/attachmen...513_132053.jpg
                Sounds right.

                Scraping that old gasket may be a chore too if it's been neglected.

                I'll offer a suggestion. If it were my bike, I'd pull that 2.55 from either exhaust #1 or #4 and replace it with a coin. A quarter is a bit smaller than a shim in diameter, but works just to keep the cam lobe from scraping the edge of the bucket. Silver/ copper is way softer than the lobe and won't hurt it. Probably won't even notice a mark on the coin.

                Once you have the shim in hand and the quarter in it's place, use that shim to get measurements where the larger shims are, swapping them out and recording measurements one at a time. You can probably swap a couple and be in spec, but doing this shuffle will hopefully minimize the number of shims you need to order, which will definitely include a 2.45 maybe even a 2.4 to finish getting measurements.
                Last edited by Burque73; 05-13-2020, 08:00 PM.
                Roger

                '83 GS850G Daily rider
                '82 GS1100GK Work in (slow) progress

                Comment


                  #38
                  Originally posted by ZombiePotatoSalad View Post
                  Here's what I got when I checked the valve shims:

                  Intake #1
                  Clearance: ----
                  Shim: 2.70

                  Intake #2
                  Clearance: ----
                  Shim: 2.70

                  Intake #3
                  Clearance: ----
                  Shim: 2.65

                  Intake #4
                  Clearance: ----
                  Shim: 2.60X

                  Exhaust #1
                  Clearance: ----
                  Shim: 2.55

                  Exhaust #2
                  Clearance: ----
                  Shim: 2.65

                  Exhaust #3
                  Clearance: ----
                  Shim: 2.60X

                  Exhaust #4
                  Clearance: ----
                  Shim: 2.55

                  As you can see, there is no clearance, even for my thinnest blade.
                  Should I start by going 5 down? I can swap a couple of them around and see if that helps.
                  Originally posted by ZombiePotatoSalad View Post
                  As the manual suggests: One lobe pointing forward, the other pointing up.
                  I don't think this bike was maintained very well. The gasket is probably the original one, or at least pretty old. It tore in a couple places as I was removing the cover, and it looks... melted?
                  Here's a picture I took before I started messing with the shims: https://cdn.discordapp.com/attachmen...513_132053.jpg
                  Are you able to do a video call such as FaceTime?
                  Cowboy Up or Quit. - Run Free Lou and Rest in Peace

                  1981 GS550T - My First
                  1981 GS550L - My Eldest Daughter's - Now Sold
                  2007 GSF1250SA Bandit - My touring bike

                  Sit tall in the saddle Hold your head up high
                  Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
                  and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

                  Comment


                    #39
                    Originally posted by cowboyup3371 View Post
                    Are you able to do a video call such as FaceTime?
                    There are no apps for it on Google Play. All I have is a smartphone and a desktop computer on the second floor.
                    Do you have Discord?
                    Last edited by ZombiePotatoSalad; 05-14-2020, 05:15 AM.
                    1980 GS550E

                    Comment


                      #40
                      What size shims would you recommend?
                      1980 GS550E

                      Comment


                        #41
                        you won't know sizes until you can get some measurements. Use the small shim and quarters and swap it around to get in the ballpark. dunno if it's been said, but DO NOT ROTATE THE ENGINE WITH THE SHIMS OUT.

                        Also, SURELY there is a gs'er in the vicinity who can help out??

                        Also, scrape that old gasket C A R E F U L L Y.....there are lots of tricks on the forum, but they all amount to "take your time and do it carefully"
                        1983 GS 1100 ESD :D

                        Comment


                          #42
                          DO NOT CHANGE A SINGLE SHIM YET

                          I too am used to calling anything a coke (or soda), but in the case of smartphones there really are distinctions. I’m willing to help work with you on a video call but I have an Apple iPhone as my smartphone; you sound as though you have an Android. If you would send me a PM with your phone number, I’ll be willing to try downloading Duo (supposedly works with androids and iPhones) to maybe work with you this evening after work. (Roughly 7pm eastern so I can knock out some personal things first).

                          Let’s review how you are doing the valve check and then we’ll go from there. Also, please scrape off that goop you smothered around your intake boots. That should not be there at all and will only help to cause other problems.
                          Cowboy Up or Quit. - Run Free Lou and Rest in Peace

                          1981 GS550T - My First
                          1981 GS550L - My Eldest Daughter's - Now Sold
                          2007 GSF1250SA Bandit - My touring bike

                          Sit tall in the saddle Hold your head up high
                          Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
                          and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

                          Comment


                            #43
                            Also, did you ever send Steve an email for his valve adjustment spreadsheet?
                            Cowboy Up or Quit. - Run Free Lou and Rest in Peace

                            1981 GS550T - My First
                            1981 GS550L - My Eldest Daughter's - Now Sold
                            2007 GSF1250SA Bandit - My touring bike

                            Sit tall in the saddle Hold your head up high
                            Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
                            and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

                            Comment


                              #44
                              Originally posted by cowboyup3371 View Post
                              DO NOT CHANGE A SINGLE SHIM YET

                              I too am used to calling anything a coke (or soda), but in the case of smartphones there really are distinctions. I’m willing to help work with you on a video call but I have an Apple iPhone as my smartphone; you sound as though you have an Android. If you would send me a PM with your phone number, I’ll be willing to try downloading Duo (supposedly works with androids and iPhones) to maybe work with you this evening after work. (Roughly 7pm eastern so I can knock out some personal things first).

                              Let’s review how you are doing the valve check and then we’ll go from there. Also, please scrape off that goop you smothered around your intake boots. That should not be there at all and will only help to cause other problems.
                              I may not be awake tonight, unsure. I woke up at 1am after waking up randomly over the course of 3 hours, and have been awake since.
                              I do have Duo on my phone.

                              I could scrape the stuff off, but I'm worried that will just bring back the air leaks. There's one screw hole that I can't use a normal screw in, as the remains of the old screw are stuck in there, and no amount of Liquid Wrench, screw extractors, or left-handed bits got it out, so I drilled into it with a self-drilling screw. I don't think I can remove it anymore, or it may not bite.
                              1980 GS550E

                              Comment


                                #45
                                I know you've been sent this before https://www.thegsresources.com/_foru...bie%20mistakes

                                Read it

                                Now - did you ever download a factory manual for your bike?
                                Did you look at the tutorial for 8V adjustment on the BikeCliff site?

                                And why on earth are you messing with your carbs? Did you forget that someone stepped up and cleaned them correctly and set them up?


                                Stop going on the internet and watching people who may/may not be doing it correctly. All the info you need is right here and on BikeCliff
                                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

                                Working...
                                X