Yuck, didn't take kindly to this sight. He didn't take kindly to windex. 

This ugly thing in my window. 

 

 

Closer look, seems to be something wrong with the piston.
Neat! gets the spark wayyyyy into the combustion chamber.
Extra hole in head for optional spark plug. Compression, shmession. 

First sign of trouble, I don't remember buying these fancy sparkplugs....
Nor these angled push rods.
Or these two piece valves,
That's the valve sitting in the cylinder, or what's left of it.