Kawasaki FH 541 bogging then stalling

[roket77]

My fh 541 will run for a while (cut a lawn or two) but it will start bogging/sputtering and then stall. Most times it will restart and be fine until a little later and do it all over again. I was able to cut 5 lawns in a row with no problem and then 2 more but next group of houses, it acted up. I replaced coils,,pulled carb off and it looked clean and also replaced fuel line,,i took fuel filter off for a little and none of these changes seemed to help. It does seem like its not getting fuel or some kind of vapor lock. I even thought it could have had a bare wire somewhere that was grounding out over a bump. Its just random from what my workers say. Does the fuel pump work off suction from hose coming out of valve cover? If so, could there be a problem there? I did replace that hose as well. Any help is appreciated,, Thank You,,Mark

[The Lawn Ranger CT.]

check to see if the vent hole in the gas gap is clogged, that could cause a vacuum and causing a fuel starve

[roket77]

i did unscrew cap slightly thinking the same thing,, this cap has a screw that you can loosen for ventilation,, i will check that though,, thank u