Rob, the only thing I haven't done yet was to make a double sided PCB for the circuit. I tried the regulator and all the caps..still the same glitch. I even tried an Infrared Opto device as the trigger and it still does it. What happens is when I bring the magnet to the hall effect for the first time, it doesn't do anything, but the second time I do it, there are two sparks in a very short time. If I continue flagging the magnet past the hall, it starts an oscillation even though I pull the magnet away, so it is self triggering. Sometimes when I power up, without the hall connected, it does this also. At any rpm above 1100 rpms, it functions normally and will run my test engine fine. It's really tough getting it started though with the multiple sparks happening when I flip the prop cause it will backfire and quit.

I am wondering if anyone else who has built the system is having similar problems..seems like you and I are the only ones who built and tested it so far.

John