Very Strange Problem with 92 civic
 

I have a 1992 Honda Civic DX with Auto trans. From time to time when
it sits for about 8 hours in a sunny spot when its about 70-75F
outside it will not start. The starter will just crank. If I proceed
to remove a spark plug it will start and run on 3 cylinders. I shut
it off, put the plug back, and it starts and run perfectly on all 4
cylinders. This has happened 3 times now and I don't have a clue
why. Any suggestions would be appreciated.

Thanks Paul.