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  • help again?

    Did a complete tune up. And welder runs good while on 120v.
    But when welding it begins to surge. Up and down want to die but doesn't. I had to set it at setting 8-9. To weld 3/16 - 1/4" material. Usually I use setting 3 or 4. What could be going on. I read it could be the gas air mixture. Why would it had changed in a month or so.
    .
    Miller Bobcat 225NT onan
    Millermatic 211
    Spoolmate 100
    (Retapped to fit regular mig tips)
    Work better & less parts to stock.
    Miller 130xp
    T/A Dragster 85 (portability 11 pounds)
    Oxygen/Acetylene torch set 50'
    2. 4-1/2" grinders
    1. 9" grinder
    14" Makita chop saw
    1/2" Aircat impact gun 900#

  • #2
    coil....

    Originally posted by eecervantes83 View Post
    Did a complete tune up. And welder runs good while on 120v.
    But when welding it begins to surge. Up and down want to die but doesn't. I had to set it at setting 8-9. To weld 3/16 - 1/4" material. Usually I use setting 3 or 4. What could be going on. I read it could be the gas air mixture. Why would it had changed in a month or so.
    have you confirmed that it is running on both cylinders?
    Kevin
    Lincoln ranger 305g x2
    Ln25
    Miller spectrum 625
    Miller 30a spoolgun
    Wc115a
    Lincoln 210mp
    F550 imt service truck

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    • #3
      Yes both are running little to no change when unplugging under no load
      .
      Miller Bobcat 225NT onan
      Millermatic 211
      Spoolmate 100
      (Retapped to fit regular mig tips)
      Work better & less parts to stock.
      Miller 130xp
      T/A Dragster 85 (portability 11 pounds)
      Oxygen/Acetylene torch set 50'
      2. 4-1/2" grinders
      1. 9" grinder
      14" Makita chop saw
      1/2" Aircat impact gun 900#

      Comment


      • #4
        Found this today. My gas line has a kink from the pump to the carb could it be its not getting enough gas under load I will get two 90s tomorrow. Any ideas
        Last edited by eecervantes83; 09-05-2014, 11:07 PM.
        .
        Miller Bobcat 225NT onan
        Millermatic 211
        Spoolmate 100
        (Retapped to fit regular mig tips)
        Work better & less parts to stock.
        Miller 130xp
        T/A Dragster 85 (portability 11 pounds)
        Oxygen/Acetylene torch set 50'
        2. 4-1/2" grinders
        1. 9" grinder
        14" Makita chop saw
        1/2" Aircat impact gun 900#

        Comment


        • #5
          help again?

          I helped my son tune up 2-cyl. Honda lawn mower this summer. He tried to mow and it would surge but not shut off, would idle fine, would start to mow then surge after opened throttle.
          Tore back apart & found we kinked or pinched fuel line under cover. Just our dumb mistake.
          Also just had similar problem with my push mower. Found the inside of rubber fuel line went bad, got soft & curled up.
          I use stay-bel & a little sea foam in them also.
          Just a possibility

          Comment

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