Almost all the way home from work today(25 miles) and my 96 Sportster with 39k miles 'pops'(I think it was a pop out the exhaust) and then the thing goes dead while I'm doing about 45MPH. It started again without a problem but it seemed like the key wasn't fully foward when I reached down to start it. It was just as I was going into my reserve tank. Could that have been the problem? Also I felt the oil tank thinking that it may be overheating(I live in Arizona) and the tank was almost too hot to touch. Any ideas? As always thank you in advance.