OK no one la ugh, I have a Dle 30 and the spark plug lead has a metal outer,this outer chaffed thru on the cowling exposing the inner cable. It still had spark but was causing a problem with spark jumping across from the inner to the outer covering. Even with the outer metal covering off the plug still sparked leading me to think that this outer metal covering is just for protection. However the cdi while I was still testing stoped producing spark. I replaced the cdi(it comes with a plug cable that cannot be removed) However still no spark. I then relplaced the pick up and it sparked fine. I then fidded the old cdi to test if it was working with the new pick up cable. it produced a spark even though the outer metal covering of the lead was in two peaces. I was still checking it out ( let it spark about ten times) when it went dead. I tried the new cdi and found it also now dead. It seems that the new pic up burnt out as well, when I fitted it to the cdi with the broken outer cable. What purpose does this metal covering on the spark cable serve,and is it possible that tha fact that it is in two that the cdi burns out the pic up?