So finally got the muffler to release tonight, installed the new one with no visible damage to the motor thankfully, now I�m having trouble with the motor and getting it running. Painful as she was running well enough over the last month to cut the grass with, bad fuel perhaps. Will not get up to operating rpm and is blowing a little smoke, next task on the weekend seems to be to drain the fuel clean the car I and see if I can get her running again.