Question about 1990 Geo Metro

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1990 geo metro engine surges up and down when stopped..... prevous owner told me he turned the idle down. So, is the surging a direct result of idle adjustment or something else? ...and where is the idle screw? :)

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Hi sounds like your engine is surging due to incorrect mixture now your idle screw is on the thottle cable were it connects to the carb and the mixture screw is on the carb body as an approx guide turn the mixture screw fully in then out two and a half turns that should help but y may need to fine ajust later

Posted on Nov 15, 2009

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