Air/Fuel mixture screw????

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  • knarfie
    XSive
    • Aug 2007
    • 18
    • Whidbey Island, Washington State

    #1

    Air/Fuel mixture screw????

    Don't wanna sound too stupid but,,,, theres no "screw" where mine is supposed to be. Just a round brass plug with a small hole in it. My carb rebuild kit has a new one of those in it. I'm guessing its a cap of some sort but how do you get it off and what the heck is it for? How in the bloody heck are you supposed to adjust the air if you can't get to it?
  • TopCatGr58
    Administrator
    • Jul 2002
    • 12650
    • Portsmouth, Va.

    #2
    On the top front of the carbs are the pilot jet screws, that sit down in recessed tubes.

    If those caps are still there, you can drill thru them just about 3/16" thick, use a small bit, and put tape up around the 3/16" point to show you where to stop, or ease up so that when you break thru you won't damage the pilot screw heads. Then screw a sheet metal screw into the cap, and use some pliers to wiggle and remove the cap and throw away!!!

    When removing the pilot screws, there are small metal and rubber washers that don't always come out with the screw.

    Don't bother putting the brass caps back on/in!

    BTW, it's a combo fuel/air mix screw, CW=lean, CCW=richer!
    T.C.
    T. C. Gresham
    81SH "Godzilla" . . .1179cc super-rat.
    79SF "The Teacher" . . .basket case!
    History shows again and again,
    How nature points out the folly of men!

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    • knarfie
      XSive
      • Aug 2007
      • 18
      • Whidbey Island, Washington State

      #3
      Got it,,, thank. I was thinking about doing that but was hesitant you know.

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