I am putting a mag 20 in a 982. engine ran just find when I mowed with it then pulled it in the shop and pulled it out. Put in the 982 and now I have no spark. I did take all the air shields off and blow the cooling fins off. My question is could I have broke the ignition or blew the wires out of the mag? Nether cylinder has fire. I am getting power to them just not out of them. I have never worked on a mag engine but have had many kt17 apart. Just want to know what to look for thanks Jim