Small Engines (Lawn Mowers, etc.): craftsman riding lawn mower b&s 19.5, craftsman riding lawn mower, engine throttle

Question
Hi, my lawn mower starts fine, but only with choke on, even if engine is warmed up. As you push the choke in it starts to die unless you push up the engine throttle carefully(eventually it dies after a while anyways). If you put the mower in gear and take off it dies after moving about 5 feet. If you just sat there on it with the choke still on it eventually dies. It basically just dies. Gas coil has been replaced air and gas filter cleaned.  

Answer
Hi Michael,

The carb most likely has dirt, debris or gummed fuel inside.  You will need to remove the carb, disassemble it, clean all the small internal openings and blow it out with compressed air.   Probe each and every hole with a
small wire.   Adding a carb rebuild kit wouldn't hurt either.  Check the fuel pump also.

Let me know how you make out.
Michael