Put a vacuum gauge on the engine and adjust the idle mixture screws until you get maximum vacuum reading. Start with one screw and screw it in until the engine stumbles and then back it out in 1/4 turn increments until you get the max vacuum reading. Then do the other side. You may have to go back and forth both sides a couple of times to get it done. Put the gauge on manifold vacuum. If the car is an automatic you want it in gear when doing this. Set the timing first. If you do it and then mess with the timing then do it again.
As Sirrotica says the 1 3/4 to 2 turns out deal is just to get you started after rebuilding the carbs or engine or whatever.
|