1. Running to lean getting hot then loses compression then dies
2. Running Rich idle too long and speed up to fast- dies
3. Air in the fuel line
a. to much vibration "fuel foaming"
b. neddle valve leaking "sucking air thru o-ring"
c. trash in fuel line
4. fuel tubing leaking
5. pin hole in clunk line in tank "when fuel gets low dies"

had the same prob check neddle and mixture control first