as stated 23 HP kaw , 1000 hours on it. i will get the model number in a min problem started a few weeks ago with a rough idle... it would run up and down. and to me sounded as if it was rich and bogging down So im mowing along 2 weeks ago , and it starts loosing power, almost as if someone slowly pulled the throthel back on me. then it dies. restarts with out too much problems and dies again...after 4 or five attemps it seems to be "acceptable enough to use the rest of the day. that week end i clean the carb. took most of it apart, took the bowl apart, and cleaned it. air line to blow out the jets. i found nothing inside of it. oil change , new filters, new plugs , new fuel filter. there is no screen in the tank to be clogged. put it back togther, ran "ok" good enough that i used it for the last 2 weeks with no problems. SO today same problem, it died on me. I noticed that if i pulled the choke it would run for 5-10 seconds longer with a smooth RPM sound, then it would die. It took extra cranking to get it restarted. now if you get it restarted and try to engauge the blades, it dies... only way to engauge the blades, is to pull the choke- even if the motor is warm. SO it idles rough, like its rich ...it runs full throttel, like its lean or at least has a fuel deivery problem. carb didnt appear to have an issues, altho i didnt tune it. and honestly i have no idea how you would on this carb. fuel pump seems to work and pump a good amount of fuel (judging by removing the "post pump fuel hose" while cranking so your thoughts?