Engine Performance problem
1992 Mazda b2200 4 cyl Two Wheel Drive Manual ? miles

it was running ok it died like it was out of fuel i pulled the fuel line off and cranked it it was pumping good but no fuel in the bowl i pulled the top off the carb everything looked ok i put it back on i got running again it ran for about a week it did it again i did the same thing this time when i had the top off the carb the only thing i noticed some fuel from the vaccume lines when i pulled them off and the accelerator pump had a little tear in it i relpaced it put new gaskets on the carb set the float level according directions that came with the carb gaskets it ran for a couple of days and did it again ive got it running but now it hesitates when accelerating and decelerating im pretty frustrated by now not sure what to do i would really appreciate any help