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    #1

    Speedo swap

    I bought a late seventy model 140mph speedo. (79 GS550) It has a larger diameter and the mount bolts are farther apart than on my stock speedo.
    Has anyone done this? Any tricks on the mounting?

    The 79 550 speedo does not have a the self cancelling turn signals. The speedo case has a marking the exact same size as my 80 speedo for installing the self-cancelling piece in the speedo. If I seperated the case and cut this piece out to mount the stock sensor would my self-cancelling work? Even though the pre-80 and my bike had different self-cancelling boxes does the sensor in the speedos function the same?

    I know it would be easier to get an 83 L model speedo but I love a challenge.
    Last edited by chef1366; 01-13-2009, 03:40 AM.
    1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
    1985 GS1150ES stock with 85 Red E bodywork.

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    #2
    Ooohh, be careful with that, Chef. That 1100 just might overpower a lil' ol' 550 speedo.

    Might turn it into a 280 mph unit.

    .
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      #3
      OK boys and girls.
      I took the 79 550 speedo and opened it up. The first thing I did was break the dial indicator. Lucky I had an extra speedo around and I stole one from that. The needle popped off and it took me an hour to find it in my shed. Talk about a needle in a hay stack.
      Ground the diameter of the face plate with the MPH markings in about a 1/4 in on the larger 140mph speedo. I had to install little washers under the face plate so the dial indicator stop was high enough.
      Cleaned and greased the 140mph innards.
      Installed the 140 speedo into my stock casing.
      The turn-signal auto-cancel works.
      Now I need to check it to see if it's accurate.
      1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
      1985 GS1150ES stock with 85 Red E bodywork.

      Comment

        #4
        Bill

        This thread is usless without pics

        You gonna grind off that little stop to check extended range above 100-140 mph for accuracy? .


        Pos

        Comment

          #5
          All I have are "after" pics. No before or during.
          1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
          1985 GS1150ES stock with 85 Red E bodywork.

          Comment

            #6
            On the ride to work today that thing screeched so loud I disconnected the darn thing.
            Back to the drawing board.
            1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
            1985 GS1150ES stock with 85 Red E bodywork.

            Comment

              #7
              It was the 550's speedo telling you MORE, Cheff...I NEED MORE SPEED!

              Comment

                #8
                Greased the channel where the cable attaches and the other side that spins the magnet. No more noise. Now to see how it works tomorrow.
                I think this thing sat a LONG time.
                1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
                1985 GS1150ES stock with 85 Red E bodywork.

                Comment

                  #9
                  IT WORKS!
                  Got to SEE me going 100mph today. No more 85mph speedo.
                  1983 GS 1100E w/ 1230 kit, .340 lift Web Cams, Ape heavy duty valve springs, 83 1100 head with 1.5mm oversized SS intake valves, 1150 crank, Vance and Hines 1150 SuperHub, Star Racing high volume oil pump gears, 36mm carebs Dynojet stage 3 jet kit, Posplayr's SSPB, Progressive rear shocks and fork springs, Dyna 2000, Dynatek green coils and Vance & Hines 4-1 exhaust.
                  1985 GS1150ES stock with 85 Red E bodywork.

                  Comment

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