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    GS transmission question

    Hello, this is my first post on this amazing forum. For the past 3 months, I've been looking to buy an early GS. I found a 78 GS1000 that is in good shape and comes with a spare 1000cc engine that has a "big bore kit" installed. The only issue with the bike is 3rd gear is out of the running bike. Is it a major undertaking to replace or fix this? Im mechanically inclined and pretty capable of projects beyond your average grease monkey oil changer. He's asking $2000 obo for the bike. Should I pass on the bike because of the transmission issues?

    #2
    For $2k the rest of the bike would have to be really nice, otherwise it's not worth the effort.

    I've never done it myself, but have seen photos here, where guys flip an assembled engine over, and pull off the lower crankcase half while the top end is still attached. That would be the simplest way to fix the transmission. Just me, but I'd pull the engine down conventionally, and go through it that way. You never know what some previous owner did. GS engines are quite stout, so some abuse must have occurred to trash the transmission.
    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
      Thats a good point. I've heard nothing but good regarding GS transmissions, so the bike probably was abused quite a bit to cause it to grenade a gear. I think ill pass on this bike as im really looking for something ready to ride. I've fallen in love with these older Suzuki's and cant wait to find a decent bike. I appreciate the response and find GS Rescorce is an amazing forum.

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        #4
        Hard part these days is finding the parts you need. Splitting the cases is just work. You do have a spare engine but it's nice to have 2 complete engines. I tore my 1150 down to replace the output shaft and it wasn't that hard, just took time.For $2k it's too much needing that done.
        1986 1150EF
        2008 GS1250SEA

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          #5
          That's a definite pass. Asking price is $2,000 too much.
          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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            #6
            Offer 1000. You can pull the engine and replace the trans in a day easily. Someone her has a trans theyll sell you and youll be done in a few days. Plenty trans on ebay.78-80 will be the same for sure
            Last edited by chuck hahn; 07-12-2025, 09:08 PM.
            MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
            1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

            NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


            I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

            Comment


              #7
              Carpenter, check your Private Messages... Kentucky is a big place, where're you at? I visit Scottsville pretty often.
              1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

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                #8
                And was also thinking it may not actually be the fears. If they were racing and power shifting it may simply be a bent shifting fork. Either way you gotta split cases.
                MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                Comment

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