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'82/'83 1100e gearing

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    #1

    '82/'83 1100e gearing

    My '82 spins about 4.6/4.7k at indicated 70 mph. 40-tooth rear sprocket with 630 chain.

    I'm curious to know what other 1100EZ/EDs are revving.
    Last edited by Rob S.; 06-05-2014, 03:48 PM.
    1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

    2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.
    Tags: None
    #2
    How do you get a GS1100 motor all the way to 46,000 RPM????
    Ray.

    Comment

      #3
      Originally posted by rapidray View Post
      How do you get a GS1100 motor all the way to 46,000 RPM????
      Ray.
      Ha, I was thinking the same thing! I think it will only do it once.
      '85 GS550L - SOLD
      '85 GS550E - SOLD
      '82 GS650GL - SOLD
      '81 GS750L - SOLD
      '82 GS850GL - trusty steed
      '80 GS1100L - son's project bike
      '82 GS1100G - SOLD
      '81 GS1100E - Big Red (daily rider)

      Comment

        #4
        Must be the 630 chain.
        81 gs 1100 E One owner,Me.

        Comment

          #5
          Originally posted by Rob S. View Post
          My '82 spins about 46/47k at indicated 70 mph. 40-tooth rear sprocket with 630 chain.

          I'm curious to know what other 1100EZ/EDs are revving.
          If I remember correctly, my '81 1100 runs a little over 4K at 70mph with a 50T rear & 18T front, 530 chain.
          '85 GS550L - SOLD
          '85 GS550E - SOLD
          '82 GS650GL - SOLD
          '81 GS750L - SOLD
          '82 GS850GL - trusty steed
          '80 GS1100L - son's project bike
          '82 GS1100G - SOLD
          '81 GS1100E - Big Red (daily rider)

          Comment

            #6
            Yes, I made a typo.

            But let's see...four answers, one is serious, the other three are snide comments. On this site? How shocking! "Surprise, surprise!" as Gomer Pyle would have said.
            1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

            2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

            Comment

              #7
              Stock sprockets are 15 teeth up front and 42 teeth in the rear. At 70mph with oem-sized tires your engine will be spinning at 4450 rpm in 5th gear.
              GS450E GS650E GS700ES GS1000E GS1000G GS1100G GS1100E
              KZ550A KZ700A GPZ750
              CB400T CB900F
              XJ750R

              Comment

                #8
                Originally posted by Griffin View Post
                Stock sprockets are 15 teeth up front and 42 teeth in the rear. At 70mph with oem-sized tires your engine will be spinning at 4450 rpm in 5th gear.
                To elaborate, if you still have a 15 tooth sprocket up front, the 40 tooth on the rear gives you 4673 rpm at 70mph.
                GS450E GS650E GS700ES GS1000E GS1000G GS1100G GS1100E
                KZ550A KZ700A GPZ750
                CB400T CB900F
                XJ750R

                Comment

                  #9
                  The way my ten-speed works, smaller in the back equals less rpms for my engine (feet).

                  I can't see why my motorcycle would be any different.
                  1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

                  2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

                  Comment

                    #10
                    Originally posted by Rob S. View Post
                    The way my ten-speed works, smaller in the back equals less rpms for my engine (feet).

                    I can't see why my motorcycle would be any different.

                    You're right, I did the math backwards. 15/40 comes out to 4238 rpm at 70mph.

                    How many teeth on your front sprocket?
                    GS450E GS650E GS700ES GS1000E GS1000G GS1100G GS1100E
                    KZ550A KZ700A GPZ750
                    CB400T CB900F
                    XJ750R

                    Comment

                      #11
                      around 5k at 80mph
                      stock gearing

                      just changed to 530 chain
                      15/50
                      seems to be the same

                      Comment

                        #12
                        15/50 huh>
                        what>?
                        thats 1/4 mile stuff unless 530 changes it that much.
                        you would spend you day shifting or umm revving really hard.
                        someone splain plez?

                        Comment

                          #13
                          50/15 = 3.4 = crazy high rpm for street bike
                          Ed

                          To measure is to know.

                          Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

                          Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

                          Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

                          KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

                          Comment

                            #14
                            Originally posted by gs1100ez View Post
                            around 5k at 80mph
                            stock gearing

                            just changed to 530 chain
                            15/50
                            seems to be the same
                            15/50 is a huge jump from stock, 19% lower. Unless you have something wrong in your numbers there is no way that would seem to be the same. If you ran 4500rpm before you would now be running 5355rpm at the same speed.


                            Originally posted by blowerbike View Post
                            unless 530 changes it that much.
                            The chain size has nothing to do with it, the drive reduction is only based on the number of teeth on each sprocket.


                            Mark
                            1982 GS1100E
                            1998 ZX-6R
                            2005 KTM 450EXC

                            Comment

                              #15
                              Originally posted by Griffin View Post

                              How many teeth on your front sprocket?
                              That's the big question. (I don't know.) A lot easier to count the teeth on the rear sprocket.
                              1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red

                              2016 XL883L sigpic Two-tone blue and white. Almost 42 hp! Status: destroyed, now owned by the insurance company. The hole in my memory starts an hour before the accident and ends 24 hours after.

                              Comment

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