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Thread: 4150 80146 fuel mixture adj screw

  1. #1

    Default 4150 80146 fuel mixture adj screw

    Just did a rebuild on 80146 600 CFM carb. All OK. However adjusting screw on left side of metering block when screwed in all the way engine keeps running, right side shuts engine down? Car runs fine?

  2. #2
    Join Date
    Jan 2013
    Constantine, MI


    Normally 1˝ turns out is a good starting point, on both idle screws. You should adjust both screws an equal amount.

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