It came with a new one. I just baught a new one. Still no luck. Could my coil be failing? My wife told me there was light when I used the spark tester but I don’t know how bright it was.
Some swear by these little neon lights but I don't use them knowing they only indicate the present of high voltage but not the strength of it. For most engines it take around 12,000 volts to jump the plug gap on a cold plug; less when it its hot. This why I use a spark gap tester here set at .166" gap when it grounded.
Personally I don't like having someone just buying parts just to find it is not the problem. Since it appears you have limited experience with working with engines I would recommend finding a confident mechanic that troubleshoot the problem locally. What you got to remember is we are not there to see the problem ourselves and can be missing something simple by trying to troubleshoot a problem remotely.
I had too many customers to spend a lot on parts to only find out later it was something simple everybody was overlooking. There is no shame in admitting you need help, its when you don't the shame comes in play. Asking for help just indicates that you know you need help and willing to admit it even the best mechanic will ask for at times when they get struck on a problem. I have been working professionally on equipment since '79 and I still ask for help at times.
I working on currently a finishing mower where one of the problem was one the swivel wheels was hanging up when the customer picked up deck. He wanted me to replace it. A fairly expensive part considering it is a Bush Hog brand mower. I was checking it out today and it turned someone had used a pipe wrench on it knurling the shaft. A little filing in the right spots fix that problem. Now if I can only get all that hi tack chainsaw bar lube out of the gear box before I replace the failed oil seal. What a mess.