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March 2025 BOM

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    March 2025 BOM

    The March 2025 bike of the month is my 1981 GS1100EX.
    I heard about it from a fellow drag racer friend who knew the owner. He hadn't ridden it for years and it was parked in an attached garage. The garage was the entrance to his wife's beauty shop so the door was open and closed all year around. He has respiratory issues, and his doctor advised him to sell his Top Dragster and Motorcycle.
    I bought it over the phone, and when my brother and I picked it up the next day, we stopped at a truck stop that had a Korean war era jet fighter plane that we also took a picture at when we picked up a KZ1000 a few years before.
    The bike needed the tank de-rusted, new petcock, carbs cleaned, battery, tires, all of the usual items that have deteriorated or expired.
    It's a good learning experience for me, at 72 it's my second non-Honda bike, the other being a 78 KZ1000. I've repaired several seriously over-tightened or butchered items, adjusted the valves, removed the Mikuni 29 smoothbore carbs and put on a set of RS36's. The 29's with 1.5 slides are more suited to a smaller KZ or CB750 than a four valve GS1100. I learned about the spun flywheel, bad voltage regulator which I did the upgrade to and fixed some suspect wiring.
    It's a fun rider and an ongoing project.
    The photo submission was the result of me trying several times before, and it was just intended to be a test photo to see if I could actually make something post. That's why there isn't any information with it.

    #2
    Hey, picture looks better than you've previously explained it to look like, even the tail cowl looks good.... You may have posted in another thread and I missed it, but wondering about the spun fly wheel??? I shade tree'd one once and it lasted over 20,000 with no problems, and was still going when I sold the bike. Fix'in one correctly is a big deal...Wondering what'd you do with that part?
    1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

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      #3
      Excellent. Maybe our BOTM editor Mark markn can take what you wrote above and paste it into the March BOTM submission.

      https://i.imgur.com/nHhnur9h.png
      Rich
      1982 GS 750TZ
      2015 Triumph Tiger 1200

      BikeCliff's / Charging System Sorted / Posting Pics
      Destroy-Rebuild 750T/ Destroy-Rebuild part deux

      Comment


        #4
        If Don R, the person who made the submission, wants is submission updated, I will look into it !

        Comment


          #5
          Well, anything would be better than this:
          https://i.imgur.com/NuNtgVCl.jpg
          Rich
          1982 GS 750TZ
          2015 Triumph Tiger 1200

          BikeCliff's / Charging System Sorted / Posting Pics
          Destroy-Rebuild 750T/ Destroy-Rebuild part deux

          Comment


            #6
            If it wouldn't be a lot of trouble Mark, adding the story would be cool.

            On the spun flywheel, I used a small file and crocus cloth to polish the bumps off of the crank and made up a flexible cone shaped sanding drum to smooth the inside of the flywheel. Then I lapped them together with medium valve grinding compound until the blue ink wore off evenly. Then I used red loctite on the taper and orange on the nut.
            Since then I've heard various opinions on whether that was correct or not.

            I made a metal mounting tab to go inside the tail cowl to replace the broken flange. That was easier than trying to make it like new. I got a new to me tool bag and a new rubber strap to hold it in place.
            Last edited by Don R; 03-07-2025, 02:50 AM.

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              #7
              Congrats, no doubt you've got things pretty well figured out.
              1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

              Comment


                #8
                Cool bike. It beat the Kaw GPz1100 that year to be world's quickest production motorcycle.
                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.

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