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Takes ~30 min to start from cold, wont stay on with no choke.

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    Takes ~30 min to start from cold, wont stay on with no choke.

    This bike is a nightmare, it has good days and bad days, when I do eventually get it running. I just rebuilt the petcock, and it ran alright just before I did that.

    After installing petcock, it took dang close to 30min to barely start (like every time) while cold. For a little while the valves (cams) sounded like loose change bouncing around, then it quiets down to normal. Also, the rpms go up, they go down. The bike dies when turning off the choke, sometimes it doesnt. Thats the major areas.

    It has good days and bad days, when I do eventually get it running.

    On a side note: I need to put in the intake boot o-rings, and the valves havent been adjusted. Is this the culprit or what? This is a mess, but any ideas?

    #2
    You have hit two of the major areas; the valves and the intake boots. You need to fix these before proceeding.

    Comment


      #3
      Toss the petcock get a ne K&L aftermarket item
      Fuel cocks are finicky as hell

      Comment


        #4
        Yes and O-rings and valve adjustment are a must
        Golly gee gosh

        Comment


          #5
          Maintenance is good. Check the Newbie Mistakes thread linked in my signature and see if anything rings a bell.
          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


            #6
            Originally posted by GoBlue View Post
            This bike owner is a nightmare, This is a mess, but any ideas?
            Fixed it again.
            http://img.photobucket.com/albums/v5...tatesMap-1.jpg

            Life is too short to ride an L.

            Comment


              #7
              GoBlue, you have a lot of wrenching to do to cure your problems (notice I said PROBLEMS)

              Valve adjust, carb clean, new boots, points and condensors, whatever it needs
              1978 GS 1000 (since new)
              1979 GS 1000 (The Fridge, superbike replica project)
              1978 GS 1000 (parts)
              1981 GS 850 (anyone want a project?)
              1981 GPZ 550 (backroad screamer)
              1970 450 Mk IIID (THUMP!)
              2007 DRz 400S
              1999 ATK 490ES
              1994 DR 350SES

              Comment


                #8
                Big things dealing with poor starting.

                1... too much air
                2... too much fuel
                3... not enough spark (or mis-timed spark)
                4... not enough compression
                5... all of the above

                You have a lot of parts to take off and clean sir, and even more parts to replace.

                Floats could be too high, jets can be plugged, o rings missing or damaged, boots cracked, rings bad, head gasket failure, crap coils, points welded together, bad condensers, bad timing advance cam, fouled plugs, bad grounds, dead battery, battery shorted, solenoid shorted, bad gas, bad fuel line, bad petcock, clogged fuel vent, shotty wiring, blown fuse, worn starter brushes, cam chain, cam timing...

                Also, your rear brake anti-freeze and wheel bearing push rods could be screwed up.

                Or... OR...

                Start here: http://members.dslextreme.com/users/...rb_rebuild.pdf

                Then here: http://members.dslextreme.com/users/...rb-balance.pdf

                Then here: http://members.dslextreme.com/users/...eplacement.pdf

                Then read this front to back: http://www.mtsac.edu/%7Ecliff/storag..._77-82_all.pdf

                Give it another go...

                Welcome to the suck.

                Comment


                  #9
                  Believe us when we tell you that THERE ARE NO SHORTCUTS.

                  Hard starting problems are primarily related to valve adjustment and clean, properly-adjusted carbs.

                  Virtually all of my GSes (there are five of them ) will start virtually instantly and can be ridden within one minute of hitting the starter button.

                  .
                  sigpic
                  mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
                  hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
                  #1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
                  #2 son: 1980 GS1000G
                  Family Portrait
                  Siblings and Spouses
                  Mom's first ride
                  Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
                  (Click on my username in the upper-left corner for e-mail info.)

                  Comment


                    #10
                    The longest it should take to be ready to ride is the amount of time it takes to put your helmet and gloves on after starting it.


                    Or at least that's what it takes for mine and really, I already have my helmet on when I start it and shut the choke off by the time I put my glasses and gloves on.
                    Cowboy Up or Quit. - Run Free Lou and Rest in Peace

                    1981 GS550T - My First
                    1981 GS550L - My Eldest Daughter's - Now Sold
                    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"

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