I'm appealing to the experts. I have a newer Beck Speedster with a 2110 CB Performance motor. 500 miles on it. After driving it continuously for 15-20, the engine cuts out and the car stalls. Upon attempting restart, we noticed it wasn't getting spark. After the car cooled down for 30 minutes, it would start back up, drive about a mile, and then die again.
Engine temps are in range, so it does not appear to be an overheating issue. Although, these big air cooled motors do need to breathe better. Perhaps not enough air flow in engine compartment. Originally thought it was the coil, replaced it with a new one, and the same behavior ensues.