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  • 750 middle drive

    Does anybody know for sure if the 750/850 middle drive is the same as the 11? My guess it is but would like to know for sure before I add to my spare parts shelf. Thanks.
    79 F full cruiser, stainless brake lines, spade fuses, Accel coils, modded air box w/larger velocity stacks, 750 FD.
    79 SF parts bike.

  • #2
    Yes and no. Some small modifications needed. Do a search and you'll find plenty of info.
    Tim Ripley - Gaithersburg, MD
    1981 XS1100 Special "Spoiled Rotten" Just sold - currently bikeless!!
    23mm float height
    120 main jets
    42.5 pilot jets
    drilled stock airbox with K&N
    Jardine 4 to 1 Exhaust
    spade fusebox
    1st and 2nd gear fix

    Comment


    • #3
      Sorry. I thought you said final drive. I misread it. Not sure about the answer to the middle drive question.
      Tim Ripley - Gaithersburg, MD
      1981 XS1100 Special "Spoiled Rotten" Just sold - currently bikeless!!
      23mm float height
      120 main jets
      42.5 pilot jets
      drilled stock airbox with K&N
      Jardine 4 to 1 Exhaust
      spade fusebox
      1st and 2nd gear fix

      Comment


      • #4
        I was wondering, Tim.. lol. I thought I'd missed something. I thought maybe you were confusing the two.. so I went and looked at a parts diagram. They are different part numbers, but on paper, they sure look a lot alike! It would be cool if they bolted up and we could have another gearing option versus just the final drive! But I'm sure it would have come up by now if it were a possible option.

        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


        • #5
          I THINK they WILL bolt up. I know a LOT of the drive parts WILL interchange. The only thing I would check is the bolt pattern for the "U" joint.
          Ray Matteis
          KE6NHG
          XS1100 E '78 (winter project)
          XS1100 SF Bob Jones worked on it!

          Comment


          • #6
            Not sure about the 750/850 middle drive, but the XJ650 Maxim middle drive sure as hell ain't the same!
            BARE BONES CHOPPERS: If it don't make it go faster, you don't need it!
            80 XS1100SG(cafe in progress *slowly)

            Comment


            • #7
              Anyone know what the gearing is with the 750/850 middle drive?

              And yes.. the 650 has a different drive than the 750/850.


              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


              • #8
                Unless I hear that the 750/850 WON'T bolt up I will see if I can find one reasonably priced. That means cheap. Cheap enough that if it won't work I can get my money back. It'd be nice to know for parts reasons anyway. Which is all I had entended it for. I won't be able to actually do the comparison until next winter. With the short riding season around these parts I save my tear downs for that stuff for winter.
                79 F full cruiser, stainless brake lines, spade fuses, Accel coils, modded air box w/larger velocity stacks, 750 FD.
                79 SF parts bike.

                Comment


                • #9
                  I know for certain that there are two type of middle drives used on the 750:

                  Type 1 - the outer bearing cover has one hole at the 6 O'clock position.

                  Type 2 - The outer bearing cover has two holes at 6 O'clock.

                  Our 11's use the Type 2 drive.

                  Comment


                  • #10
                    Thanks Randy.
                    79 F full cruiser, stainless brake lines, spade fuses, Accel coils, modded air box w/larger velocity stacks, 750 FD.
                    79 SF parts bike.

                    Comment

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