I have an 042 that has been in my possession since 1977 or 1978 there has been nothing done to this saw in my lifetime! I have not run the saw since 2018. The muffler bolt on right side is missing. I ran tap on that side to see if threads were OK and they seem fine. You have to kill it by choking. I am selling this saw as is for a parts saw. There is no chain brake or Dawgs on the saw. $185 shipped lower 48