Bought a 2009 cub LT 1024. Starts, run, until PTO turns on acts like some one pulled the choke. Runs Very rich and floods. Cleaned and rebuilt the Nikki carb. There is a thing they call fuel tower. In that are 2 recessed holes the gas passes through. I think there should jets or something in there. Schematic shows nothing. If I pinch the gas line off it cleans up