Came back from walking the dog and started the generator up on the first pill. Let it warm up gradually opening the choke and then adding a space heater at the 2md level of three as a load. Then switched to the Econo mode. Ran maybe 15 minutes and died. Tried two pulls on the starter cord but it was dead. Looks like Tim may have called it right. Something may be causing it to flood. Back to the dealer tomorrow morning and I'll insist they run it for up to an hour with a load on.