Sorry for beating a dead horse here, but I can't solve this one, despite reading all the threads. 1972 Evinrude Starflite 100 HP 100293. When it runs, it runs great. Good power all over the range. Some days it won't pop. However, when I turn the ignition switch from off to on, it will fire. No fire when cranking. Semetimes I can get her primed up and if I hit the key just right it will fire and stay running. Checked the timer base (5 ohms), reverse cutoff spring is not grounded, battery voltage at 11 volts when cranking, and battery tested good. This has been ongoing since last season. I removed the rectifier and clipper, and installed a real regulator, so I'm getting 13.4 volts, not 16+ when it's running. The problems go back before the regulator installation though. Today it ran at 1000 rpm on the trailer for 30 or 40 seconds, then just quit and would not restart, but I still get it to pop when I cycle the ignition. Powerpack? Coil resistance measures the same as all my other motors, about .2 ohm on the primary. Have not checked secondary though. Distributor is clean, no carbon tracks. Joe Reeves, where are you? Can these packs go intermittently? I've even tried two batteries in parallel to make sure voltage stayed above 12 when cranking. No help. The starter spins over like a mad dog. I'm ready to fab a plate to go back to points and a coil, and would have done so already if the motor had points. It's kept my 85HP alive for years, and never had another ignition problem.
