Scott's Used and Abused GS(X)750

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  • bccap
    Forum LongTimer
    Past Site Supporter
    • May 2011
    • 27433
    • Vancouver B.C.

    #16
    Originally posted by Crank
    Spent most of the weekend cleaning, checking and re-building the carbs.
    Used an old electric croc pot with vinegar, water and some lemon flavoured cleen green and boiled them for a few hours.
    All passages etc seem to be clean. Where do the 3 small holes just behind the butterfly connect to?

    Also, what is the float height measurement for the 750, naught came up in a search, or is there a downloadable workshop manual?


    Thanks
    Scott

    There is a selection of manuals on Cliff's website.

    Comment

    • Crank

      #17
      A before and after pic for fun!

      Attached Files
      Last edited by Guest; 12-15-2014, 06:42 AM.

      Comment

      • Crank

        #18
        I need help, put the carbs back on the bike. I rigged up a temporary suspended fuel tank. Put the new coil in, confirmed spark on all four of the cylinders.
        Checked I am getting fuel into the bowls via drain bolts. Sorted out a minor wiring problem to get the starter to crank as well.
        Unfortunately she just would not start, one cylinder would kind of start running intermittently. Ran a battery almost flat trying.
        Not new to motors, mostly with four wheels or 2 strokes so this is really ****ing me off.

        What should I be checking next?
        Thanks Scott

        Comment

        • JAG

          #19
          Originally posted by Crank
          I need help, put the carbs back on the bike. I rigged up a temporary suspended fuel tank. Put the new coil in, confirmed spark on all four of the cylinders.
          Checked I am getting fuel into the bowls via drain bolts. Sorted out a minor wiring problem to get the starter to crank as well.
          Unfortunately she just would not start, one cylinder would kind of start running intermittently. Ran a battery almost flat trying.
          Not new to motors, mostly with four wheels or 2 strokes so this is really ****ing me off.

          What should I be checking next?
          Thanks Scott
          If any fuel is getting into the cylinders. May be blocked jets from the cleaning process. Maybe float hieghts are wrong. Maybe weak sparks.

          Comment

          • Crank

            #20
            Plugs def wet JAG. Can understand 1 carb blocked, but all four?

            Thinking about it now, there was spark but how strong it was is the question.
            What would contribute to weak spark?

            Edit: On these bikes.
            Last edited by Guest; 12-16-2014, 11:52 PM.

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            • Crank

              #21
              She runs!!!!

              Comment

              • GSX1000E

                #22
                YEAH!!! What is the next hurdle to jump over?

                Comment

                • Crank

                  #23
                  Thanks GSX1000E!

                  I would say wiring, I am going to put the complete loom on the bench and work through it.

                  Also need to sort out the brakes and take it out for a bit of road testing.
                  Oil leak on the starter side of the motor when she runs that needs a look at.
                  Last edited by Guest; 12-24-2014, 01:41 AM.

                  Comment

                  • Crank

                    #24
                    Can you believe that every bleed nipple has been snapped off with the thread left in the calipers!
                    Don't have a left hand drill bit or left hand thread self tapper so will have to wait until after Xmas to do some braking.

                    Looking for a replacement fuel tap, the vacuum tap has been butchered, is there a normal on/off tap from another bike that fits the GS tank?

                    Comment

                    • Crank

                      #25
                      I lied, the front left hand bleed nipple is intact

                      Any recommendations on the fuel tap anybody, please......

                      Comment

                      • GSX1000E

                        #26
                        This Ebay seller usually has the best deals on the new replacement petcocks: http://stores.ebay.com/GEORGEFIXS-MO...E-PARTS?_rdc=1

                        Comment

                        • Crank

                          #27
                          Thanks GSX1100E.

                          I would really prefer an on/off/reserve tap for this bike.
                          All my TZR's have vacuum taps and they can be a PIA sometimes.

                          Thought somebody here might have matched a tap up from another bike.

                          Starting to enjoy working on this bike, the project looked intimidating in the beginning but there is a glimmer of light at the end of the tunnel!
                          Last edited by Guest; 12-25-2014, 04:17 PM.

                          Comment

                          • GSX1000E

                            #28
                            Your bike has a lever-less petcock? 1980 model?

                            Comment

                            • Crank

                              #29
                              '81 but it is not complete so not sure exactly how it should look.

                              PO had bypassed it somehow and had an inline tap fitted.
                              Last edited by Guest; 12-25-2014, 04:24 PM.

                              Comment

                              • GSX1000E

                                #30
                                Can you post pictures of where it mounts to the tank and any damage that might have been done that would prevent you from simply installing a new one and worrying about something else instead?

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