Just bought a 89 YJ . Previous owner had just isnstalled new Carter DBL Carb. 4.2 Engine. The choke goes on when cold and the engine starts right up and is on fast idle. As it warms the choke does not move. When it goes off fast idle the choke closes all the way and floods out the engine. In other words the automatic choke is working backwards. Any suggestions of what is wrong? Help is appreciated! Can't drive because it floods out within the first mile.:???: