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Extra holes drilled into the stock GS650 exhaust pipe

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    Extra holes drilled into the stock GS650 exhaust pipe

    I just acquired this bike and it is too noisy and runs poorly. I am sure I will have to pull and check out the 2 carbs ... but I want to start by plugging the 4 holes up in each muffler. Any suggestions as to HOW best to do the plugging? Small self-tapping screws using that liquid weld paste to keep it plugged forever? So plugging the holes should quiet the exhaust back to normal .... but I am also wondering if it will help the engine run better? Not a nice steady idle but gets better with upper rpms.
    Dennco2
    1985 GS450
    Stock condition and a work in progress

    sigpic

    #2
    Post up some photos of these "extra holes". We are flying blind otherwise...
    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

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      #3
      I had an ugly OEM exhaust that had the baffle plates drilled (poorly) by the PO. I found a full exhaust with intact baffles for free. Sounds better definitely. Made absolutely no difference in performance.

      You may want to count the number of carburetors. Typically it’s 4. Unless you have a Murray’s 2-carb set up.
      Rich
      1982 GS 750TZ
      2015 Triumph Tiger 1200

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

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        #4
        I should have x2 mufflers you can have (read: free) if you're willing to pay shipping (read: not free)...
        Mine are off of a 77 GS550 so you'll want to verify fitment. I have the full exhaust system if interested.

        This should fix your holes
        Current:
        1993 ZX11 - 2nd build in progress
        1977 GS750 (710 is getting closer)
        1998 Kawasaki Voyager - selling
        1998 Chevy C2500
        1999 Rav4

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          #5
          exhaust holes.jpg
          Correction .... this is a GR not GS Suzuki 2 cylinder. I am looking for the best way to plug these holes ... so they never unplug.
          Dennco2
          1985 GS450
          Stock condition and a work in progress

          sigpic

          Comment


            #6
            How about an audio of the sound?

            It would look better with 4 more holes drilled in each muffler.
            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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              #7
              Possibly large pop-rivets will seal the holes & not look out of place.
              1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

              Comment


                #8
                Shoot, that ain’t so bad.
                This is the poorly drilled pipe that came on my bike. Why would someone do this?


                This is the one I picked up for free.
                Rich
                1982 GS 750TZ
                2015 Triumph Tiger 1200

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

                Comment


                  #9
                  Weld the holes closed. A 5 minute job for someone with the equipment.
                  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

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