Why is your Yamaha banshee not getting any spark?

I have recently had no spark from my 99 yamaha banshee, i went threw everything, redid my wiring, got a new cdi box, checked my kill switch, i pretty much did everything you could, until i had toke the boot off the coil (it unscrews) the part that goes over the spark plug, and what i did was eliminated the boot and just put the spark plug in the coil, and then checked for spark and thank god i found my problem, u most likely just need new boots i got new spark plugs and boots for 12 dollars, i tried to explain this the best way i could and i hope this is your problem, but remember do not give up on your sheeeeee :)