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78 gs750 running issue

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    78 gs750 running issue

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    Here is a vid of it running, getting gas from a lawnmower gas tank (gs tank is full o' rust)

    Only runs with the choke on and dies as soon as throttle is applied. Though it currently has no air filter or air box, what could be the issue aside from getting to much air when the choke is not on?

    Pods ordered and am picking them up tomorrow. Hopefully that helps a bunch. Also have no idea what jets are in the carbs, I am assuming they are stock.

    It has a 4-1 Supertrapp exhaust on it and not sure about the engine internals.

    #2
    the first thing you should do is remove your carbs, strip em and dip em. that way you will know they are perfectly clean before you go any further. you can check what jets are installed and make sure everything is in good order, o rings, float heights etc.
    then you have a base to start with prior to working out what will be required to give you a rough start when fitting the pod filters.
    1978 GS1085.

    Just remember, an opinion without 3.14 is just an onion!

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      #3
      Originally posted by silverbullet132 View Post
      http://www.youtube.com/watch?v=wg5_jG_nrog

      Here is a vid of it running, getting gas from a lawnmower gas tank (gs tank is full o' rust)

      Only runs with the choke on and dies as soon as throttle is applied. Though it currently has no air filter or air box, what could be the issue aside from getting to much air when the choke is not on?

      Pods ordered and am picking them up tomorrow. Hopefully that helps a bunch. Also have no idea what jets are in the carbs, I am assuming they are stock.

      It has a 4-1 Supertrapp exhaust on it and not sure about the engine internals.
      You did get a Megawelcome?



      Read it
      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

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        #4
        Originally posted by Agemax View Post
        the first thing you should do is remove your carbs, strip em and dip em. that way you will know they are perfectly clean before you go any further. you can check what jets are installed and make sure everything is in good order, o rings, float heights etc.
        then you have a base to start with prior to working out what will be required to give you a rough start when fitting the pod filters.
        Thanks, going to get a few bins and some pinsol from the dollar store later. 50/50 mix with water and soak for a day or 2 Hopefully that helps.

        No I did not thanks!

        Going to order a bunch of things from the supplier list on there

        Comment


          #5
          Save the money on the Pine Sol and just go to Walmart and get the proper can of Berrymans carbs and parts cleaner. Do the job right ONCE!!.

          Get the orings from cycleorings.com ( Robertbarr here on the forum) and get new intake boot orings as well.

          Go to any new owner thread and click on one of the megawelcomes and get busy reading.

          ALL the maintenace needs done..carbs 100% torn down, valves adjusted, carbs vacuum guage synced.

          You can throw a Tshirt rag ( one layer thick ) over the throats of the carbs and that will duplicate the negative air that the ( stock ) air filter was designed to do..see the carbs need an ever so slight rersistance at the throat so they are forced to sip fuel from the bowls. Otherwise its a pain to make carbs actually work as they should.
          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


            #6
            Hi,

            Seems like I might've missed you. Pay attention to the Top 10 Newbie Mistakes.

            If you are here you probably have a 30 year old motorcycle that needs about 20 years worth of maintenance. You'll find all kinds of helpful tips, procedures, manuals, diagrams, "how-to" guides, etc, in the links below. Let's get started.

            Let me dump a TON of information on you and share some GS lovin'.

            I just stopped by to welcome you to the forum in my own, special way.

            If there's anything you'd like to know about the Suzuki GS model bikes, and most others actually, you've come to the right place. There's a lot of knowledge and experience here in the community. Come on in and let me say "HOoooowwwDY!"....

            Here is your very own magical, mystical, mythical, mind-expanding "mega-welcome". Please take notice of the "Top 10 Common Issues", "Top 15 Tips For GS Happiness", the Carb Cleanup Series, and the Stator Papers. All of these tasks must be addressed in order to have a safe, reliable machine. This is what NOT to do: Top 10 Newbie Mistakes. Now let me roll out the welcome mat for you...



            Please Click Here For Your Mega-Welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike!

            More links to helpful threads in the forum:
            Help! Your Bike Won't Start
            DON'T DO THESE THINGS
            Help! Your Bike Won't Run Well
            Oh God! Pods!



            Thanks for joining us. Keep us informed.

            Thank you for your indulgence,

            BassCliff

            Comment


              #7
              Thanks guys

              Will read through all of that soon, and just ordered the o ring kit.

              Comment


                #8
                Also, can I use the R/R off of my 2000 Honda VFR 800 on the GS? I want to clean up the wiring a little bit.

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