I found this at http://www.iBoats.Com - three really good threads dealing with points and condensor ignition systems - how they work, troubleshooting and tune-up. Here are the links...
How it Works - http://forums.iboats.com/showthread.php?t=329742
Troubleshooting - http://forums.iboats.com/showthread.php?t=335407
Tune-Up - http://forums.iboats.com/showthread.php?t=335302