I had the same problem with mine. I replaced the starter with a high torq mini-starter three years ago and even with unwrapped headers, no heat shielding, have not had a problem since. People have asked on other threads who makes a good one. I do not know who made mine. Receipt says: 3HP Starter MFR-Part Number: MIS-9200-168 I am not sure if the others are burning up mini-starters or regular sized starters from NAPA, but could solve their problem too. Only draw back is its more expensive. Advancement always seems to comes at a cost!!!