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78 GS750 engine overhaul on the Cheap!

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    #61
    Thanks for complimenting my grandsons work.

    I'm very proud of him. This is the Lego Optimus Prime kit with 1,503 pieces recommended for ages 18+. He finished it in less than 10 hours. A chip off this Old block.

    IMG_1350.jpg
    1977 GS750
    1978 GS750
    1979 GS750L
    1980 GS550e
    1978 KZ1000
    1975 Honda XL350 K1

    Comment


      #62
      Beautiful job. Qwertyuiop
      1983 GS 550 LD
      2009 BMW K1300s

      Comment


        #63
        Originally posted by Rob S. View Post

        DOHC Suzuki etc? That's some third-grader you've got there!
        Thank you. We used transparent high heat tape used for powder coating purpose. Bonds well and easy to trace the letters with an exacto knife.
        1977 GS750
        1978 GS750
        1979 GS750L
        1980 GS550e
        1978 KZ1000
        1975 Honda XL350 K1

        Comment


          #64
          As a newbie to the wonderful world of working on motorcycles...

          ...I've learned a great deal from the photos and words you've shared so far.

          Thank you.

          I'm in the process of getting a 1982 Suzuki GS750T back on the road. Having sorted the Tank and Carbs out, I had hoped a relatively simple valve check with replacement seals would allow me to see if I could get her to start.

          Unfortunately, the paint job on the engine is flaking and peeling off in many places.

          It's pressing all my buttons.

          So I'm trying to get the old paint off. It is proving to be a very time-intensive job. Since methyl chloride​ has been removed from paint stripper here in the UK, I'm resorting to brass brushes, Dremel, and elbow grease.

          It's taken me two sessions (in between life, work, family, etc) to strip about 1/4 of the cylinder. I think I might have started something I don't know how to finish!

          03-suzy-valves.jpg

          Sorry for waffling.

          My question is: How did you get the engine so clean whilst it was in the frame?

          Any tips or advice on how to best get the paint off this engine is very much appreciated.

          I look forward to more of your posts.

          Thanks again.

          Marcus

          Comment


            #65
            Originally posted by SamLack99 View Post

            My question is: How did you get the engine so clean whilst it was in the frame?

            Any tips or advice on how to best get the paint off this engine is very much appreciated.

            I look forward to more of your posts.

            Thanks again.

            Marcus
            Marcus,
            I did remove the head and cylinder while the engine was still in the frame. My engine was not painted black it just had the factory silver which came off pretty easy with stripper and elbow grease. I think that in your case I would either remove the engine and get it vapor blasted or tear it down completely and work on the individual pieces one at a time. Either way, it's going to be a lot of work. It looks like you're committed now so keep up the good work.
            1977 GS750
            1978 GS750
            1979 GS750L
            1980 GS550e
            1978 KZ1000
            1975 Honda XL350 K1

            Comment


              #66
              Either way, it's going to be a lot of work. It looks like you're committed now so keep up the good work.
              I don't mind hard work, as long as I haven't missed a smarter way of doing it.

              Thanks for the confirmation =)

              Comment


                #67
                Decided on a color for the Cheap GS750 build. Pictured below is a FB Market place buy for $200. A 1977 GS750. The ad did not show the tank and side covers but when I arrived to pick it up he said he found a few extra parts that where in his closet. The tank is absolutely Pristine and free of any rust what so ever.
                So the color will be Blue on my Cheap build.

                IMG_1379.jpg
                Last edited by Bobbys 94; 04-07-2024, 08:22 PM.
                1977 GS750
                1978 GS750
                1979 GS750L
                1980 GS550e
                1978 KZ1000
                1975 Honda XL350 K1

                Comment


                  #68
                  The spoke wheels are also very nice as well as the instrument cluster and signals. The frame is what I purchased it for and I got a whole lot of Great components with the awesome frame.

                  IMG_1382.jpg
                  1977 GS750
                  1978 GS750
                  1979 GS750L
                  1980 GS550e
                  1978 KZ1000
                  1975 Honda XL350 K1

                  Comment


                    #69
                    The tank is beautiful and all original. Came with a factory Suzuki key that matches the ignition, gas tank lock and seat lock.

                    IMG_1381.jpg
                    Last edited by Bobbys 94; 04-07-2024, 07:03 PM.
                    1977 GS750
                    1978 GS750
                    1979 GS750L
                    1980 GS550e
                    1978 KZ1000
                    1975 Honda XL350 K1

                    Comment


                      #70
                      Originally posted by Bobbys 94 View Post

                      Marcus,
                      I did remove the head and cylinder while the engine was still in the frame. My engine was not painted black it just had the factory silver which came off pretty easy with stripper and elbow grease. I think that in your case I would either remove the engine and get it vapor blasted or tear it down completely and work on the individual pieces one at a time. Either way, it's going to be a lot of work. It looks like you're committed now so keep up the good work.
                      You mention 'Factory Paint' on the engine. I'm in the process of restoring my '78 750EC. I was led to believe the only part of the engine that came painted from the factory, was a crankcase half. Up to now, I've never found out which half that was! Can you, or anyone else following your build, enlighten me, please?
                      GS750EC, GS1100E, GS1150EG, Harris Magnum 2 (GS1170E motor), GSXR750F, Mk1 GSF1200, and finally Mk1 GSF600.

                      Comment


                        #71
                        Not sure what the process was called "Back in the Day" but there was a process. The process of coating the surface of the cylinder, cases, cylinder head and valve cover to protect against corrosion. It can be removed with chemicals but it will still boil down to "Elbow Grease" at one point.
                        1977 GS750
                        1978 GS750
                        1979 GS750L
                        1980 GS550e
                        1978 KZ1000
                        1975 Honda XL350 K1

                        Comment


                          #72
                          That's interesting, I never heard only 1 half of eng. case was painted. Hope somebody may have more info.
                          1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

                          Comment


                            #73
                            The "Cheap" GS750 engine build just became "Not Cheap" GS750 engine build. Thanks to a member I now have a Weisco 850 kit for the 750. Along with many other rebuild pieces like:
                            APE valve springs
                            8 new valves
                            Complete OEM gasket set
                            Schuman valve guides
                            OEM Intake boots
                            20 new head bolts
                            Barnett fiber and steel clutch plates with clutch springs

                            You have to want to do this for "YOU/ME" because you'll never get what it's worth if you try to sell it. My intentions have never been to build this for resale to anyone. It keeps me busy and I learn something every day working on these projects.
                            IMG_1349 - Copy.jpg
                            I won't be starting the 850 kit until I'm done with my 1977 GS750 project shown below.
                            1977 GS750
                            1978 GS750
                            1979 GS750L
                            1980 GS550e
                            1978 KZ1000
                            1975 Honda XL350 K1

                            Comment


                              #74
                              This is on my lift and ready to start the resto. I will be keeping this 1977 GS750 in stock configuration. After soaking the entire bike in about a gallon of WD40 over the past month this is what I have to work with now. I did have to buy all the engine side covers because they where all missing including the stator assembly. I did do a little hand polishing to them before I installed them. Now the tear down begins.
                              My goal is to replace anything that is wore out or in need of replacing due to old age. Complete carb rebuild, fork seals, all wheel bearings and seals, tires and tubes, triple tree bearings, all brake components

                              IMG_1437.jpg
                              1977 GS750
                              1978 GS750
                              1979 GS750L
                              1980 GS550e
                              1978 KZ1000
                              1975 Honda XL350 K1

                              Comment


                                #75
                                Left side of the GS750 just because
                                IMG_1436.jpg
                                1977 GS750
                                1978 GS750
                                1979 GS750L
                                1980 GS550e
                                1978 KZ1000
                                1975 Honda XL350 K1

                                Comment

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