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    shaft drive to chain

    just bought a 1991 GS850G and its shaft drive, i want to know if i can convert it to chain drive so i can extend the rear swing arm????????

    #2
    8O Nooooooo, i'm not saying you can't, but Why?
    sigpic2002 KLR650 Ugly but fun!
    2001 KLR650 too pretty to get dirty

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      #3
      Where'd you find a "91" 850? Presume that's a typo!! Can't see any economical way of converting to chain short of plugging in a complete 1000 engine, driveline, frame, and rear suspension. In other words, easier to go find a chain-drive GS to start with. But as Marvin, and many, many of us old hot rodders would say, nothing says you can't do it. How about having a longer driveshaft and swing-arm fabbed, along with the necessary brake linkage and sub-frame mods?

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        #4
        Originally posted by dodger1
        Where'd you find a "91" 850? Presume that's a typo!! Can't see any economical way of converting to chain short of plugging in a complete 1000 engine, driveline, frame, and rear suspension. In other words, easier to go find a chain-drive GS to start with. But as Marvin, and many, many of us old hot rodders would say, nothing says you can't do it. How about having a longer driveshaft and swing-arm fabbed, along with the necessary brake linkage and sub-frame mods?

        yeah, my bad i meant 1981, i justt don't like the way it looks in the back tire area i need to find a way to bring the tire back a inch or 2 just to make it look even, unless, someone has a gs 1000 or bigger for sale or trade, or trade for mine and some money. 8)

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          #5
          Originally posted by dodger1
          Where'd you find a "91" 850? Presume that's a typo!! Can't see any economical way of converting to chain short of plugging in a complete 1000 engine, driveline, frame, and rear suspension. In other words, easier to go find a chain-drive GS to start with. But as Marvin, and many, many of us old hot rodders would say, nothing says you can't do it. How about having a longer driveshaft and swing-arm fabbed, along with the necessary brake linkage and sub-frame mods?

          yeah, my bad i meant 1981, i justt don't like the way it looks in the back tire area i need to find a way to bring the tire back a inch or 2 just to make it look even, unless, someone has a gs 1000 or bigger for sale or trade, or trade for mine and some money. 8)

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            #6
            I, for one, am going to take a stand here and tell you not to commit this atrocity on that poor GS850G.

            This is a terrible idea for several reasons:

            1) You'd be the first. I'm pretty sure no one has ever done this to a GS shaftie. Therefore you'd be involved in some pretty intricate custom machining and heat treating to make horrifically expensive one-off parts. It's a lot more involved than simply removing the secondary drive gearbox and making a new swingarm. I know there are some brands of bike where the shaft and chain drive models have a lot more in common, but the GS850 engine and frame are all designed around shaft drive.

            2) It's utterly pointless. There are far more chain drive GS bikes out there, including many that already have the extended swingarm you crave. You would be far better off the sell the 850 and picking up a 750 or 1000 or 1150 or whatever.

            3) It ALREADY looks cool! On what planet does a nasty, greasy chain and sprocket look better than a clean, sleek, shiny gear housing? An 850 is especially striking with a 4/1 exhaust which exposes the left side of the drive housing.

            You knew this idea would horrify and offend everyone, right? :twisted: :twisted:
            1983 GS850G, Cosmos Blue.
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              #7
              Originally posted by bwringer

              You knew this idea would horrify and offend everyone, right? :twisted: :twisted:
              I think that is his plan.
              poor unloved 850

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                #8
                Ahhh, another one who realizes:



                CHAINS RULE. :twisted: 8)

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                  #9
                  Originally posted by DMPLATT
                  Ahhh, another one who realizes:



                  CHAINS RULE. :twisted: 8)
                  Rule what?? Your wallet? 8)
                  Believe in truth. To abandon fact is to abandon freedom.

                  Nature bats last.

                  80 GS850G / 2010 Yamaha Majesty / 81 GS850G

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                    #10
                    Jim Kritz,

                    Where do you live and how much do you want for your 850?
                    Believe in truth. To abandon fact is to abandon freedom.

                    Nature bats last.

                    80 GS850G / 2010 Yamaha Majesty / 81 GS850G

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                      #11
                      Originally posted by dpep
                      Jim Kritz,

                      Where do you live and how much do you want for your 850?
                      \


                      Well i live in Edgerton Wisconsin, it is about 15 minutes south of madison,i payed 400 for the bike, and put almost a thousand just to get it running and road worthy, carbs have been all rebuilt with stade 3 jets in it, 4 seperate foam air cleaners, new choke cable, new petcock, and a few other items, but i think the reason it was so much is cause i took it to someone to have it all done but u make an offer i mean i would like to have the gs 1000 or bigger WITH chain drive. for the other replies what else can i do about the ass end of it?, bigger tire, take the fender off? lower it a little bit? i mean i am kinda lost for ideas, and i will be damned if i buy a harley 8)

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                        #12
                        well maybe i will keep it the same if i can make up for it in the engine department like got some more power lol it seems like i need ideas for everything cause i am not to familiar with the bike, i was told a different head would give me more power, new carbs (unknown on how much those would be) bigger cams, bored out???? i mean i got alot of ideas but i think a bigger Gs with the chain drive will open up new horizions for what i want to do. then again maybe not does anyone here have souped up or customized gs850G's?????

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                          #13
                          you obviously got the wrong bike.

                          just sell that 850 and start fresh and get what you really want.

                          let someone else appreciate the 850 for what it is.

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                            #14
                            Originally posted by dpep
                            Originally posted by DMPLATT
                            Ahhh, another one who realizes:



                            CHAINS RULE. :twisted: 8)
                            Rule what?? Your wallet? 8)
                            :P :P

                            I'm actually a previous Shafty dude. Not too hip on the Chain thing, but Earl and Hoomie have given me some lessons. Hopefully, I've learned. 8)

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                              #15
                              Originally posted by Jim Kritz
                              well maybe i will keep it the same if i can make up for it in the engine department like got some more power lol it seems like i need ideas for everything cause i am not to familiar with the bike, i was told a different head would give me more power, new carbs (unknown on how much those would be) bigger cams, bored out???? i mean i got alot of ideas but i think a bigger Gs with the chain drive will open up new horizions for what i want to do. then again maybe not does anyone here have souped up or customized gs850G's?????
                              You have an excellent bike and you don't need anything done to it. It has good performance, handles very well, and I don't know if there is anything more reliable out there.

                              The 850G is already bored-out from 750 to 850 to provide a bit more torque and accommodate two-up touring folks and it is purpose-built for shaft drive. While performance improvements are possible, they are limited and, apart from carb/exhaust modifications, they are expensive when compared to other available options.

                              As others have said, if you are looking for something faster, the solution is very simple: buy it in the form of an 1100 or 1150, and let someone else enjoy the qualities of the 850G.
                              Bertrand Russell: 'Men are born ignorant, not stupid. They are made stupid by education.'

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