GS850 1979: Choke won't stay close

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  • maisf
    Forum Apprentice
    • Aug 2020
    • 48
    • Montreal Quebec

    #1

    GS850 1979: Choke won't stay close

    Hi there,

    The choke on my GS850 won't stay out (closed) when I start the bike. It keeps on opening by itself.

    It looks like theres not enough friction in the cable to keep it there... I need to jam a small visegrip to stop it from going back in!

    Is there a sort of friction adjustment somewhere I'm missing?

    Thanks!

    Frank
    ------ Current rides: -----------------

    Honda CT70 K0 1970 complete restoration in progress
    Suzuki GS850 1979 as stock as could be... well except for the bars!
    Yamaha FJ-09 2016 with OEM saddle bags for long distance running and gunning
    Yamaha VStar 1300 2007 (wife's) for relaxing
  • Rijko
    Forum Sage
    • Feb 2014
    • 1445
    • Netherlands

    #2
    The top part of the choke cable is a knob with a pin attached.
    On my old cables i have the same issue, what i do is pull the choke
    out as far as possible and with pliers i make that pin a bit out-of-round
    on the lowest visible part so it has friction with the pipe it slides through.
    Just a tiny bit is enough.
    Rijk

    Top 10 Newbie Mistakes thread

    CV Carb rebuild tutorial
    VM Carb rebuild tutorial
    Bikecliff's website
    The Stator Papers

    "The thing about freedom - it's never free"

    Comment

    • maisf
      Forum Apprentice
      • Aug 2020
      • 48
      • Montreal Quebec

      #3
      Hi Rijko,

      Thanks, I'll try this out!
      ------ Current rides: -----------------

      Honda CT70 K0 1970 complete restoration in progress
      Suzuki GS850 1979 as stock as could be... well except for the bars!
      Yamaha FJ-09 2016 with OEM saddle bags for long distance running and gunning
      Yamaha VStar 1300 2007 (wife's) for relaxing

      Comment

      • Grimly
        Forum Guru
        Past Site Supporter
        Super Site Supporter
        • Sep 2012
        • 5761
        • Ireland

        #4
        Can't recall if the original choke is pull and twist-to-lock, but the replacement choke cable from some car at the breakers, is. Twist-to-lock choke cables used to be common on cars, you'll find one easily. Even brand new they're cheap enough.
        Failing that, a clothes peg around it would do the same job.
        Dave
        '79 GS850GN '80 GS850GT
        Only a dog knows why a motorcyclist sticks his head out of a car window

        Comment

        • robertbarr
          Forum Sage
          Past Bard Award Winner
          GSResource Superstar
          • Sep 2005
          • 2721
          • Joliet, Illinois

          #5
          Owners of these (including me, when I bought mine in 1979) develop an approach like this: Pull the choke up with your right hand. Left hand pulls in the clutch. Twist your torso and press the start button with your right elbow. Off you go!

          No, I'm not kidding -- I used that technique for about 7 years & 52,000 miles.
          and God said, "Let there be air compressors!"
          __________________________________________________ ______________________
          2009 Suzuki DL650 V-Strom, 2004 HondaPotamus sigpic Git'cha O-ring Kits Here!

          Comment

          • Redman
            Forum LongTimer
            Past Site Supporter
            • Mar 2004
            • 13717
            • Michigan, west Michigan

            #6
            80 850g I had with pull choke in center, the base there in the center had as disc that could turn to tighten the tension to keep it in place.
            http://webpages.charter.net/ddvrnr/GS850_1100_Emblems.jpg
            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


            https://imgur.com/YTMtgq4

            Comment

            • rphillips
              Forum Guru
              Past Site Supporter
              Super Site Supporter
              • Jun 2005
              • 7611
              • Norene TN

              #7
              The little knurled ring tightens up on the cable shaft, tighter the ring, more friction on the cable right where it comes out of the steering stem.
              1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

              Comment

              • rphillips
                Forum Guru
                Past Site Supporter
                Super Site Supporter
                • Jun 2005
                • 7611
                • Norene TN

                #8
                Yep, he was just quicker than me.
                1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

                Comment

                • Brendan W
                  Forum Sage
                  Past Site Supporter
                  • Jul 2013
                  • 4920
                  • Wexford, Ireland

                  #9
                  Have a look at what is happening at the bottom end.
                  The clutch cable has a habit of getting involved with anything that moves down there.
                  97 R1100R
                  Previous
                  80 GS850G, 79 Z400B, 85 R100RT, 80 Z650D, 76 CB200

                  Comment

                  • maisf
                    Forum Apprentice
                    • Aug 2020
                    • 48
                    • Montreal Quebec

                    #10
                    Originally posted by robertbarr
                    Owners of these (including me, when I bought mine in 1979) develop an approach like this: Pull the choke up with your right hand. Left hand pulls in the clutch. Twist your torso and press the start button with your right elbow. Off you go!

                    No, I'm not kidding -- I used that technique for about 7 years & 52,000 miles.
                    Hahaha... That's a good one!

                    ------ Current rides: -----------------

                    Honda CT70 K0 1970 complete restoration in progress
                    Suzuki GS850 1979 as stock as could be... well except for the bars!
                    Yamaha FJ-09 2016 with OEM saddle bags for long distance running and gunning
                    Yamaha VStar 1300 2007 (wife's) for relaxing

                    Comment

                    • maisf
                      Forum Apprentice
                      • Aug 2020
                      • 48
                      • Montreal Quebec

                      #11
                      Originally posted by rphillips
                      The little knurled ring tightens up on the cable shaft, tighter the ring, more friction on the cable right where it comes out of the steering stem.
                      Yeah, I saw that, but tightening that wouldn't do any good. I guess someone lubed this somehow...

                      I may try some brake cleaner on this to dry-it out.
                      ------ Current rides: -----------------

                      Honda CT70 K0 1970 complete restoration in progress
                      Suzuki GS850 1979 as stock as could be... well except for the bars!
                      Yamaha FJ-09 2016 with OEM saddle bags for long distance running and gunning
                      Yamaha VStar 1300 2007 (wife's) for relaxing

                      Comment

                      • rphillips
                        Forum Guru
                        Past Site Supporter
                        Super Site Supporter
                        • Jun 2005
                        • 7611
                        • Norene TN

                        #12
                        The cables never worked real well, but that is the way they were designed to work. "IF IT AIN"T BROKE DON"T TRY TO FIX IT" Why in the sheeeeet didn't they just leave them alone, worked perfect for all those years when the choke was on the end of the carb. rack. If they had just left it alone, we would have never had this conversation.
                        1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

                        Comment

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