I have a 1996 Mercury 40 hp outboard that keeps giving me a beeping alarm. The motor is a 4 cylinder 2-stroke oil injected unit. I first thought that it was the low oil alarm but eliminated that by pulling the oil sensor wires...it still beeped. Then I got to feeling around on the head by the spark plugs when noticed that by cylinder #3 it was HOT. The rest of the head is cool to the touch. The motor "pees" water fine. What would make just that spot by the third cylinder get hot? Any suggestions would be greatly appreciated.

Thanks in advance,
Ryan