I've been trying to adjust my idle screw on on this engine with no luck( Johnson J115SXEO). It originally came with 9 screws turned out from closed position. But from the manual, it recommends 2-3 or so. I adjust it to 5-6 turns from closed position just from listening to the engine. Does anyone know the correct settings it should be? If you have the settings for the mid and high settings, please let me know. Thanks all.