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mixture screw q?

Discussion in 'XJ Technical Chat' started by loolagigi, Apr 7, 2009.

  1. loolagigi

    loolagigi Member

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    if i tighten my mixture scre down all the way, turning back,losening it, does it allow more fuel, or decrease it? should all carbs be set on the mixture screw the same turns back, or do they vary due to correct tuning?
     
    loolagigi, Apr 7, 2009
    #1
  2. FastMaxim82

    FastMaxim82 Member

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    they will vary. when i pulled mine which still had the anti tamper plugs they were and 3/4 or of a turn diff across 1-3 and 4 was like 1& 1/2.
    not sure about in or out, i would assume that in would richen it up but i've been known to be wrong before.
     
    FastMaxim82, Apr 7, 2009
    #2
  3. BlueMaxim

    BlueMaxim Active Member

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    Turning the screw in or clockwise leans the mixture. Turning it out or counterclockwise enrichens the mixture. Yes they will vary depending on differences between carbs, cylinders and valves.
     
    BlueMaxim, Apr 7, 2009
    #3
  4. wizard

    wizard Active Member

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    Turning the screws out will richen the mixture, but you need to start with all the screws out the same amount, then do plug chops for the fine tuning.
     
    wizard, Apr 7, 2009
    #4

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