Just finished a build on a new drag quad. I had it running initially, but noticed it had somewhat weak spark. When testing the quad, it was sluggish off the line. Did some tuning on it for quite some time to try and get it to come around with not much luck. After going over everything again, I noticed the pick up coil on the stator was cracked. Next I switched the stator and pick up coil with a new Ricky Stator unit. Then I went from having weak spark to no spark at all! I performed the ohm check on the stator and pick up coil and it is in spec. Next I switched the coil with another used one I had in the shop. Presto! Now I had fire again. Nice fat, blue spark. Better than what I had before. Here's where it went strange. I kicked it over about 4 or 5 times and the spark was fine. Then after kicking it over around that many more times again, the spark began to fade and now it has no spark..... AGAIN. Could I possibly be this darned unlucky to have two coils fail in such a short time? OR.... could there be something causing the coils to fail?