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Showing results for tags 'su 3 screw card adjustment'.
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Hi: I'm reading the carb tuning how-to's on this site and I realize I may be turning the wrong screws and going around in circles. My setup does not have any emissions from (#1 to #6 and #13) in the diagram, so I have four screws I may adjust #8, two #10's and #14 (excluding the mixture nuts but I understand how they work). Adjust idle fuel and balance: I don't know what the screw at #8 is called but I'm supposed to disconnect the ball and socket there or back off the screw? Then I use the individual screws at #10 to balance air flow and by disabling front/rear. Should #14 be backed off the tab? Off-Idle Fuel and Balance: Turn the fast idle screw to 3,000 rpm. Is this the screw at #14? When at 3,000 rpm do I use the #10 screws to balance and by disabling front/rear? Any help is appreciated. Thank you. Howard 1974 260z
