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    #1

    Fuel Problems

    Afternoon all, Ive done a search but couldnt find anything relating to this.

    I have bought a GSX 550. Starts and runs fine, idles fine and everything....however, if I hit 75-80mph + the bike stalls. As if she has run out of fuel. Looking in the clear screen of the fuel filter, there will be no fuel in there. Put the petcock to prime, itll fill up and will run again. I beleive it is a vaccum fed petcock.

    Any suggestions as to what might be causing this? I didnt think it was the carbs due to the fact that it runs out higher up than them.

    Thanks in advance, and sorry if this is a duplicate question
    Tags: None
    #2
    My suggestion: ditch the fuel filter, check the petcock, and check the gas tank venting (cap).
    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

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      #3
      Your petcock may be sticking inside. I recommend you take it off and clean it. Also if you have a vacuum gauge, test the vacuum on the line going to the petcock. The hose could be leaking, which would prevent the petcock from opening.

      Comment

        #4
        Greetings and Salutations!!

        Hi Mr. Thehef,

        Yes, my first thought is also fuel starvation, whether from a restrictive inline fuel filter, dirty carbs, improper or maladjusted jetting (lean air/fuel mix), air intake leaks, faulty petcock, etc. Here are some tips and procedures for you...

        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!

        Thanks for joining us. Keep us informed. I will put you on my prayer list.

        Thank you for your indulgence,

        BassCliff

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