Engine won't start when it's Hot.

[Bill OH]

Coils do not like heat. Try locating the coils off the engine in a cool place with air flow. Also check the points for binding on their pivot posts at 200 degs and while your at it check the point resistance with an ohm meter. You may have to increase the spring tension on the points and lube the pivot posts. I have experienced both of these conditions. Fun@@#$^&.