On 24/06/2011 4:10 PM, thebigguy wrote:
I have a craftsman 22" self propelled6.75hp mower about 10 yrs old or
so. THe engine starts good when I go to mow the lawn. After running
for 30-45 mins if it stopds, wither intentionally on my part, or out
of gas, it will NOT restart. Have to wait at least an hour and a half
or more and then it kicks right over. I assume it overheats. I have
turned the throttle down and no luck. Any ideas?

Check the fuel tank cap's vent hole to ensure it's not plugged. Sounds
like the mower is drawing a vacuum on the fuel tank. After it sits for a
while the vacuum gradually dissipates allowing fuel to flow once again
to the carburetor.