I have a John Deere LX176(Kawaski FC420V) with no spark with kill wire diconnected. I measured primary and secondary coil and they were not shorted or open so I was not sure coil was defective. So I decided to remove the the coil from a John Deere 160 ( Kawaski Fb460v) I had. The coil looks the same and fit with bolts and I new this coil was good since I had tested it with coil tester before removing. Put it in JD LX176 and it did not work either which was confusing to me. Then I put it back in JD160 and now I have is no spark there. So i have went from one dead coil to destroying another. What did i do. I thought I would see some type of spark by swithing them but did not count on destroying it. Are the coils that sensitive that a different magnet can destroy one. Should I have just ordered a new coil in the first place when I had no spark and not tried another which I now is not the same part but it is from the same manufacturer. Thanks for help
Blair