it will run for a little while, then after 1min to 30 sec it will stop, I have to prime it agin, and start it again will run for a bit then stop. wheels lock up also. then gas is bubbling in the tank, like something mite have plugged, it??? just put new carberator kit on, ran really good the first mow. then a week or two later, it started to act like i described above. I love my lawn mower, could you please help me resolve this problem, thank-you, diane