ok, what is the secret to getting the spark plug cap to stay on the plug of a DL50. there is a spring inside the cap and another one that came with the plug. the top of the plug doesnt seem to go all the way into the cap. is the second spring supposed to go around the sparkplug and cap to hold it on? if so, what is the procedure? the plug that came with the engine hasnt any markings. the positive conductor on the top of the plug looks like it is too big to go all the way into the cap. it looks like it cant make contact with the high tension lead. any help out there? thanks jim