I have a 2000 murry riding mower and it has a TVT691-600401A 20hp v twin. I replaced the fuel pump, lines, and put on a bowl kit on both carbs. When I spray fuel in the carb it will fire up until that fuel is burnt. I took the carbs back off today. I removed the bowl full of gas and blew out the carb body with compressed air. put it all back together and nothing.
Those plastic bowls on those carbs are horrible about warping. I dont even mess with the bowls anymore. Go to psep.biz and buy an aftermarket replacement carb for $35-$40. It will save you alot of headaches.