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Thread: Emulsion tube size

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    Emulsion tube size

    Hi I run a peugeot 205 xs with twin 40s with about 115bhp but it's very rich on idle and fouls the plugs quickly but when driven it's fine, the emulsion tubes are F9 does that sound rite for the engine size?

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    Re: Emulsion tube size

    the tubes wont be your problem

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    Re: Emulsion tube size

    Any ideas what it could be?

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    Re: Emulsion tube size

    idle jet size

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    Emulsion tube size

    Quote Originally Posted by Graham View Post
    idle jet size
    F11 is a good tube regardless of your idle fouling problem.


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    Emulsion tube size

    Quote Originally Posted by Stevie2480 View Post
    Hi I run a peugeot 205 xs with twin 40s with about 115bhp but it's very rich on idle and fouls the plugs quickly but when driven it's fine, the emulsion tubes are F9 does that sound rite for the engine size?
    Hi steve. Only way to set it up properly is rolling road. Other wise ur just guessing.

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    Re: Emulsion tube size

    Its finding a good Rolling Road operator that's familiar with jetting twin Webers etc in this day and age that can be a problem.

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    Re: Emulsion tube size

    I do all my jetting on the road using a wideband AFR meter, car still goes on the rolling road to fine tune but generally i find fuelling spot on after road jetting and only use the rolling road to fine tune ignition settings and play with cam timing.

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    Re: Emulsion tube size

    The car has been set up on the rolling road and drives great but does tend to soot up when idling, the idle jets are 54/F9
    Last edited by Stevie2480; 02-05-2018 at 07:38.

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    Re: Emulsion tube size

    Big for that engine. try and 45

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    Re: Emulsion tube size

    Thanks will give that a try

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