Cleaned Carb wont run correctly.

[dodie]

I cleaned the carb, it wasnt bad pretty clean. Installed a new k&n air filter also drilled the plug out on the pilot screw. The bike will start. The bike will run at a higher rpm although it will stall after a short time. Like it burns all the fuel in the bowl then stalls. I also can set the idle at a higher rpm it will run until I adjust the screw to a normal idling rpm then it will stall. I tried running the bike on prime thinking maybe it wast filling the bowl fast enough but it did the same thing (stall after a few minutes). Tomorrow Im gonna take the pet cock off and see if its clogged up. How many turns should I set the pilot screw at. The screw under the plug I drilled out. I dont see any vacuum leaks on the 2 rubber hoses the rubber looks good. It ran ok but not great when we put it away for winter. It used to surge aka to lean. I was trying to richen it up but putting a new high flow air filter on I may of made it even leaner. Any suggestions?