Turned the fuel off in the morning after chores started up at 7:30 pm and got halfway down the driveway before it died. Still thinkin rings. I replaced the cylinder head 1000 miles ago. What do you think? Will a compression test tell me if the rings are messed up?Try shutting the fuel petcock let it sit overnight then try starting with the petcock closed, If it won't start you have a stuck float filling your crank case!