Hi and thank you for your question.
You mentioned fogging the engine and putting 7 gals of fresh fuel in the tank.
First, exactly what procedure did you use to fog the engine?
2nd, if you filled the gas tank when you put it up the last time, how did you put 7 more gallons of fuel in it?
The reason I ask that is if the tank is not completely full, there is air space above the fuel level and allows for condensation, which eventually leads to water in the gas. I am also curious as to what the existing old fuel smelled like when you added the new fuel?
I would also suggest checking the spark plugs to make sure they haven't fouled on you. Fouling occurs when the porcelain insulator becomes saturated with oil that makes it a conductor, not an insulator. Therefore, the spark will jump from the insulator to the shell of the spark plug and will not fire under compression. To test this, pull the spark plugs out, put them back in the spark plug caps and lay them on the valve cover, but away from the open spark plug holes. Crank the engine over and observe the spark. It should be a fat blue spark jumping across the gap between the center and side electrodes. If it is white looking spark, or orange, and appears to be jumping around and looking more like a sparkler from the 4th of July than a fat blue consistent spark, the plugs are fouled. There is no cleaning a fouled spark plug. It needs to be replaced.
Let me know about those things, and we can go from there.