Gear Indicator Leaking oil

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  • RobP
    • Mar 2026
    #1

    Gear Indicator Leaking oil

    Hi
    On my 1986 GS750ES my gear indicator is leaking oil. I've changed the o ring and tightened screws, but still a leak. I'm guessing maybe part is fatigued with age, or maybe a crack? Wondering if I could put a bit of liquid gasket in the area of the o ring? Is this part still available new?

    thanks
    Rob
    Tags: None
    • chuck hahn
      Forum LongTimer
      Past Site Supporter
      • May 2009
      • 25951
      • Norman, Oklahoma
      #2
      Parts fiches dont show a 750ES in 86. anyway, it wont hurt to smear a little RTV around the flange area of the unit and the engine case to seal it up. Also degrease them both well and inspect the switch for cracks in the plastic housing
      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

        Comment

        • hillsy
          Forum Sage
          • May 2008
          • 1469
          • Brisbane, Queensland, Australia
          #3
          Not sure if they still sold them in Oz in 86, but they did in Canada:

          Current:
          Z1300A5 Locomotive (swapped my Intruder for it), GS450 Cafe Project (might never finish it....), XT500 Commuter (I know - it's a Yamaha :eek:)

          Past:
          VL1500 Intruder (swapped for Z1300), ZX9R Streetfighter (lets face it - too fast....), 1984 GSX750EF, 1984 GSX1100EF (AKA GS1150)
          And a bunch of other crap Yamahas....

            Comment

            • RobP
              #4
              Thanks for the replies.

              Will try the RTV....

              Regards,
              Rob

                Comment

                • Guest
                  #5
                  Put a new o-ring on the unit
                  Whoops already done
                  The unit may be cracked

                    Comment

                    • chuck hahn
                      Forum LongTimer
                      Past Site Supporter
                      • May 2009
                      • 25951
                      • Norman, Oklahoma
                      #6
                      He said he did do a new oring and its still seeping
                      MY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
                      1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550

                      NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.


                      I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.

                        Comment

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