850 final drive?

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  • XSokieSPECIAL
    XS-XJ Guru
    • Jun 2009
    • 1631
    • Tulsa, OK

    #1

    850 final drive?

    The 850 FD is the same as a 750 right. Have an opportunity for an 850 FD but want to be certain before I pick it up.
    GT
  • XJOK2PLAY
    XS-XJ Guru
    • Jan 2009
    • 2099
    • Skiatook, Ok.

    #2
    Yes, as far as I know. Both have been used.

    I've been told it's a little easier to swap w/, due to a spacer difference, but others have said that's incorrect.

    850 will work fine for you.
    '82 XJ1100J Maxim (has been sold.)

    '79 F "Time Machine"... oh yeah, Baby.... (Sold back to Maximan)

    2011 Kaw Concours 14 ABS

    In the warden's words from Cool Hand Luke;
    "What we have here is a failure to communicate."

    Comment

    • XSokieSPECIAL
      XS-XJ Guru
      • Jun 2009
      • 1631
      • Tulsa, OK

      #3
      Thanks Bob. Anyone else?

      Comment

      • trbig
        Simply used to just post A LOT!
        • Nov 2005
        • 7838
        • Ada, Oklahoma

        #4
        Both are geared the same and will work. Not sure about the washer thing, but even if it's true, it's nothing major. Snatch that thing up. I think you'll love it as much as the rest of us do. Good luck..

        Tod
        Try your hardest to be the kind of person your dog thinks you are.

        You can live to be 100, as long as you give up everything that would make you want to live to be 100!

        Current bikes:
        '06 Suzuki DR650
        *'82 XJ1100 with the 1179 kit. "Mad Maxim"
        '82 XJ1100 Completely stock fixer-upper
        '82 XJ1100 Bagger fixer-upper
        '82 XJ1100 Motor/frame and lots of boxes of parts
        '82 XJ1100 Parts bike
        '81 XS1100 Special
        '81 YZ250
        '80 XS850 Special
        '80 XR100
        *Crashed/Totalled, still own

        Comment

        • XSokieSPECIAL
          XS-XJ Guru
          • Jun 2009
          • 1631
          • Tulsa, OK

          #5
          Thanx y'all. I'm gonna grab it!

          Comment

          • Ivan
            XS-XJ Guru
            • Jul 2008
            • 2524
            • Hutchinson KS

            #6
            no. you will hate it and it won't work at all. Now, where is it?
            Ich habe dich nicht gefragt.

            Comment

            • oseaghdha
              XS-XJ Guru
              • Aug 2006
              • 1075
              • N43.02.5,W88.14.2

              #7
              Sam Dam Ting

              That's what I used. Same part number as the 750.

              Installed per the instructions, and it's still the swap of the century IMHO.
              XS1100SF
              XS1100F

              Comment

              • foreda
                XSive Maximus
                • Oct 2008
                • 949
                • Southwest Louisiana

                #8
                750 fd

                I have a 750 FD somewhere in my shop. Think I might try it out on "Ghost Rider" project. Everything I have hear sounds like a great modification and since it won't be an original build, may as well try it out.
                78 XS1100E Standard
                Coca Cola Red
                Hooker Headers

                http://i408.photobucket.com/albums/p...m/DSC00580.jpg

                1979 XS1100 Special
                http://i408.photobucket.com/albums/p...m/DSC00612.jpg

                1980 XS Standard
                http://i408.photobucket.com/albums/p...m/DSC01137.jpg

                2006 Roadstar Warrior
                http://i408.photobucket.com/albums/p...um/warrior.jpg

                Comment

                • XSokieSPECIAL
                  XS-XJ Guru
                  • Jun 2009
                  • 1631
                  • Tulsa, OK

                  #9
                  I really want to bring the cruising RPM's down a bit. It seams like it's screamin' at about 70. Should help my milage also. I'm only getting about 27 -29 now mostly around town.
                  Greg

                  Comment

                  • XSokieSPECIAL
                    XS-XJ Guru
                    • Jun 2009
                    • 1631
                    • Tulsa, OK

                    #10
                    Originally posted by Ivan
                    no. you will hate it and it won't work at all. Now, where is it?
                    I'm looking at 2. You want me to see if I can get you 1?
                    Greg

                    Comment

                    • Ivan
                      XS-XJ Guru
                      • Jul 2008
                      • 2524
                      • Hutchinson KS

                      #11
                      Originally posted by XSokieSPECIAL
                      I'm looking at 2. You want me to see if I can get you 1?
                      Greg
                      Nah, was just giving you hell.

                      BTW 27-29 in town really is about right. My FD swap didn't help the mileage out any, but does make the scoot more pleasurable to cruise on.
                      Ich habe dich nicht gefragt.

                      Comment

                      • XJOK2PLAY
                        XS-XJ Guru
                        • Jan 2009
                        • 2099
                        • Skiatook, Ok.

                        #12
                        Greg,

                        It will be like adding another top gear. Should lower your top gear cruising rpm's around 900 or so. Some say they have experienced MPG increases, others say they haven't. If all you do is mostly around town, probably won't help mpg. All highway, long rides, probably would. Best thing about the mod is you don't feel like you need to shift one more time, even though you're already in 5th...
                        '82 XJ1100J Maxim (has been sold.)

                        '79 F "Time Machine"... oh yeah, Baby.... (Sold back to Maximan)

                        2011 Kaw Concours 14 ABS

                        In the warden's words from Cool Hand Luke;
                        "What we have here is a failure to communicate."

                        Comment

                        • XSokieSPECIAL
                          XS-XJ Guru
                          • Jun 2009
                          • 1631
                          • Tulsa, OK

                          #13
                          [QUOTE=Ivan;236402]Nah, was just giving you hell.

                          There I go trying to be a nice guy again.

                          That never works out for me. guess I'll stick to being a p&!(k. LOL

                          Comment

                          • xs11lover
                            XS-XJ Guru
                            • Apr 2008
                            • 1433
                            • Montoursville Pa

                            #14
                            While you guys are looking at all those 750 and 850 final drives see if you can get the exhaust too, I know a guy that's been hunting for an 850 exhaust forever and he said a 750 would do if he got the mounts too as long as it's clean and solid. He's got green $$$ for ya.
                            79 XS11 Special (Lazarus)
                            80 XS850 Special (Old Faithful)
                            80 XS11 Standard sorta stock (Beatrice)
                            79 DT 100

                            Comment

                            • XSokieSPECIAL
                              XS-XJ Guru
                              • Jun 2009
                              • 1631
                              • Tulsa, OK

                              #15
                              Originally posted by XJOK2PLAY
                              Greg,

                              It will be like adding another top gear. Should lower your top gear cruising rpm's around 900 or so. Some say they have experienced MPG increases, others say they haven't. If all you do is mostly around town, probably won't help mpg. All highway, long rides, probably would. Best thing about the mod is you don't feel like you need to shift one more time, even though you're already in 5th...
                              Yea, I keep catching myself checking for another gear when I step out onto the highway.

                              I'm curious though, why put a taller gear in a bike with a smaller engine and less power? (i.e. the 850) Doesn't seem to make sense.

                              Comment

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