Announcement

Collapse
No announcement yet.

'85 GS450L gear position sensor

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    '85 GS450L gear position sensor

    so, im browsing the clymer manual for gs 400-450 77-87 and it says there's supposed to be a gear position sensor inside the sprocket cover on the left side of the bike, but the gs450 wiring diagram from the same site doesn't say anything about such a sensor.

    i just had that cover off the bike today to check the clutch pin and pin pusher thingy, and i saw nowhere to mount such a sensor.
    searching for the item on amazon and e-bay shows that there is such a sensor for my model and year.

    which is it? is there supposed to be a sensor, or not?
    1985 Suzuki GS450L

    #2
    well, does a 450L have gear indication 1 2 3 4 5 ? (6?) on the instument panel?

    Welcome to TheGSR.
    Would be good for you to put year and model in your signature line (Goto User Control Panel), then that shows up in your every posting, and we all will know what year you have.

    Had 850G for 14 years. Now have GK since 2005.
    GK at IndyMotoGP Suzuki Display... ... GK on GSResources Page ... ... Euro Trash Ego Machine .. ..3 mo'cykls.... update 2 mocykl


    Comment


      #3
      it does have a position indicator on the instrument cluster, so i guess the sensor is there somewhere.
      is it maybe behind the sprocket?
      1985 Suzuki GS450L

      Comment


        #4
        Originally posted by SkyfangR View Post
        it does have a position indicator on the instrument cluster, so i guess the sensor is there somewhere.
        is it maybe behind the sprocket?
        To tell you the truth I never came across the actual sensor (switch) on my 450 and I went through it with a fine toothed comb. Pretty sure it pops out of the case somewhere on the left rear part of it, the only other wires that would need to be coming out of the cases would be the stator wires further forward.
        1980 Yamaha XS1100G (Current bike)
        1982 GS450txz (former bike)
        LONG list of previous bikes not listed here.

        These aren't my words, I just arrange them

        Comment


          #5
          If yours is like my 81 550T, the switch may be above the front sprocket as in these pictures:

          Gear Selector Switch by Scott Baker, on Flickr

          oil in gear selector switch by Scott Baker, on Flickr

          Either way, look for the wiring coming from that section of the casing
          sigpic
          Cowboy Up or Quit. - Run Free Lou and Rest in Peace

          1981 GS550T - My First
          1981 GS550L - My Eldest Daughter's
          2007 GSF1250SA Bandit - My touring bike

          Sit tall in the saddle Hold your head up high
          Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
          and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

          Comment


            #6
            thanks cowboyup, that picture helped. it was buried under a layer of greasy gunk i hadn't got to cleaning yet. pulled it and ran an ohm test on the terminals and wires. looks like i wont need to replace this particular sensor. now just gotta figure out why the dash indicators aren't lighting up. ran an ohm test on the bulbs and the board and that's all good too. must be something further in the wiring
            1985 Suzuki GS450L

            Comment


              #7
              If you take the sensor off to clean it, be sure not to lose the pin and spring that go in the hole.

              Rich
              1982 GS 750TZ
              2015 Triumph Tiger 1200

              BikeCliff's / Charging System Sorted / Posting Pics
              Destroy-Rebuild 750T/ Destroy-Rebuild part deux

              Comment


                #8
                investigating further into the electrical system on this thing, i came across an odditiy

                the oem parts diagram looks like this:
                gs450harness.jpg
                circled in red is where i THINK my turn signal relay goes. however, the relay currently on the bike has 2 pins, that fit on that L shaped connector.
                however, it looks like theres a ground wire connector there too, and i can't figure out where that goes.it's just kinda hanging there. should i leave it as is, or connect it to the a frame ground?
                1985 Suzuki GS450L

                Comment


                  #9
                  Originally posted by SkyfangR View Post
                  investigating further into the electrical system on this thing, i came across an odditiy

                  the oem parts diagram looks like this:
                  [ATTACH=CONFIG]63025[/ATTACH]
                  circled in red is where i THINK my turn signal relay goes. however, the relay currently on the bike has 2 pins, that fit on that L shaped connector.
                  however, it looks like theres a ground wire connector there too, and i can't figure out where that goes.it's just kinda hanging there. should i leave it as is, or connect it to the a frame ground?
                  If it's a black wire there's a good chance it goes to ground, any other color do some investigating!
                  1980 Yamaha XS1100G (Current bike)
                  1982 GS450txz (former bike)
                  LONG list of previous bikes not listed here.

                  These aren't my words, I just arrange them

                  Comment


                    #10
                    its black with a white stripe.

                    the turn and brake lights have the same kind of wire for their ground. according to bikecliffs' gs450 wiring diagram.

                    so i should put a bullet connector on a piece of wire and ground it somewhere on the frame>?
                    Last edited by SkyfangR; 07-11-2021, 05:54 PM.
                    1985 Suzuki GS450L

                    Comment


                      #11
                      That or look for a lonely connector nearby
                      sigpic
                      Cowboy Up or Quit. - Run Free Lou and Rest in Peace

                      1981 GS550T - My First
                      1981 GS550L - My Eldest Daughter's
                      2007 GSF1250SA Bandit - My touring bike

                      Sit tall in the saddle Hold your head up high
                      Keep your eyes fixed where the trail meets the sky and live like you ain't afraid to die
                      and don't be scared, just enjoy your ride - Chris Ledoux, "The Ride"

                      Comment


                        #12
                        there isn't one, which is why it flagged as odd.
                        1985 Suzuki GS450L

                        Comment


                          #13
                          Originally posted by SkyfangR View Post
                          its black with a white stripe.
                          Right! That's a ground, seems to me I came across a black without the stripe somewhere on mine which was not a ground. I'm not sure that switch itself NEEDS a ground but if it's down there I'd more than likely see if there's a spot on the backside of that switch for it to mount to, look for a broken stub on a ring where the wire would go on a screw/bolt.
                          1980 Yamaha XS1100G (Current bike)
                          1982 GS450txz (former bike)
                          LONG list of previous bikes not listed here.

                          These aren't my words, I just arrange them

                          Comment


                            #14
                            P.S. I just looked at the wiring diagram and it DOES indeed show a ground for that switch and from the pictures earlier in the thread my memory was tripped and that is indeed the switch itself. My bet is the wires are coming out of the back of that housing which means you'll either need to tip the bike on it's side or raise it up high enough to get to them.
                            1980 Yamaha XS1100G (Current bike)
                            1982 GS450txz (former bike)
                            LONG list of previous bikes not listed here.

                            These aren't my words, I just arrange them

                            Comment

                            Working...
                            X