I have a 92 115 mercury 2+2, it wasn't running and a friend adjusted the carbs. However he adjusted all the carb screws not just the idle screw on the top 2 carbs. He adjusted the screws in red on the right side of the carb that are pre-set from the factory. Does anyone know what each carb should be set at for the factory pre-set. The manual states to not touch these screws
