left caliper wont fit

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  • leedutcher
    • Feb 2026

    #1

    left caliper wont fit

    been working on my gs1100ez lately. after draining the brake lines and adding new brake fluid. i cant seem to get the caliper into the forks leg. seem like it almost 4mm to wide... when i received my "project" they we not installed... anyone else have the same issue?
  • Agemax
    Forum Guru
    • Apr 2008
    • 8371
    • plymouth uk

    #2
    does the right caliper fit on ok?
    1978 GS1085.

    Just remember, an opinion without 3.14 is just an onion!

    Comment

    • leedutcher

      #3
      yep took a little but of wrestling but yea fit perfect

      Comment

      • Agemax
        Forum Guru
        • Apr 2008
        • 8371
        • plymouth uk

        #4
        are you sure the pistons in the calipers are fully retracted?
        have you had the front wheel off as well?
        1978 GS1085.

        Just remember, an opinion without 3.14 is just an onion!

        Comment

        • leedutcher

          #5
          no i have the front wheel on. is it suppose to be off? yes they are push all the way in

          Comment

          • Agemax
            Forum Guru
            • Apr 2008
            • 8371
            • plymouth uk

            #6
            no, i was just wondering if you did have the wheel off, it doesn't need to be.
            dunno mate, are you sure you put the calipers back together correctly?
            maybe post up some pics so we can have a look at whats going wrong here......
            1978 GS1085.

            Just remember, an opinion without 3.14 is just an onion!

            Comment

            • leedutcher

              #7




              Here you go

              Comment

              • Agemax
                Forum Guru
                • Apr 2008
                • 8371
                • plymouth uk

                #8
                it looks like you need to remove the mounting brackets from the calipers and clean up and lubricate the sliding pins. they seize up with lack of maintenance and the calipers dont slide back and forth as they should do.
                you can see one of the bolts next to the bleed nipple in the first pic
                1978 GS1085.

                Just remember, an opinion without 3.14 is just an onion!

                Comment

                • leedutcher

                  #9
                  OK will do this bike has been thru hell and back. I'm hoping to give it new lease on life. It won't be like this for long

                  Comment

                  • salty_monk
                    Forum LongTimer
                    GSResource Superstar
                    Past Site Supporter
                    Super Site Supporter
                    • Oct 2006
                    • 14003
                    • London, UK to Redondo Beach, California

                    #10
                    Looks to me like the rotor is too close to the fork leg. Is this on the 82 1100? Those look like the early 78-79 rotor & I think the offset & thickness of the braking surface is different.
                    Hows the gap on the other side?

                    Also a possibilty of the spacers being wrong on the wheel, maybe there is a spacer that needs to go between the speedo drive & the fork leg on that model, I don't think so but it's worth a look....
                    1980 GS1000G - Sold
                    1978 GS1000E - Finished!
                    1980 GS550E - Fixed & given to a friend
                    1983 GS750ES Special - Sold
                    2009 KLR 650 - Sold - gone to TX!
                    1982 GS1100G - Rebuilt and finished. - Sold
                    2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

                    www.parasiticsanalytics.com

                    TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

                    Comment

                    • Guest

                      #11
                      I just took these from my 82 GS1100EZ, perhaps they'll help. Apologize for the dirt.










                      Comment

                      • leedutcher

                        #12
                        Yes its a 82 gs1100. Other side went in good..idk think i might pull the wheel off the gk and pit it on the ez and see if that helps at all. Plus the gk has slotted brakes

                        Comment

                        • Guest

                          #13
                          Originally posted by leedutcher
                          Yes its a 82 gs1100. Other side went in good..idk think i might pull the wheel off the gk and pit it on the ez and see if that helps at all. Plus the gk has slotted brakes
                          This is a stock '82 GS1100EZ, it has slotted disks, yours should also, that might be your problem (wrong disks), don't know if the GK and EZ disks are interchangeable, I guess you'll find out.

                          Comment

                          • leedutcher

                            #14
                            Yep mine doest have.sotted brakes.. guess I know what I'm doing tonight .

                            Comment

                            • salty_monk
                              Forum LongTimer
                              GSResource Superstar
                              Past Site Supporter
                              Super Site Supporter
                              • Oct 2006
                              • 14003
                              • London, UK to Redondo Beach, California

                              #15
                              Originally posted by sedelen







                              In the picture above there also appears to be an extra spacer outboard of the speedo drive that doesn't show in your photo....
                              1980 GS1000G - Sold
                              1978 GS1000E - Finished!
                              1980 GS550E - Fixed & given to a friend
                              1983 GS750ES Special - Sold
                              2009 KLR 650 - Sold - gone to TX!
                              1982 GS1100G - Rebuilt and finished. - Sold
                              2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!

                              www.parasiticsanalytics.com

                              TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

                              Comment

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