I have a kioti dk35 and it has been having a myserious issue involving the starter. I have killed 6 starters in the past year and cant figure out the cause. Its clearly due to overheating as it smokes and is very hot to the touch. The failure and overheating happens like 30 mins after starting. The main positive battery wire has been changed as well as the starter fuse. Any idea whats causing these failures?