A muffler on a 4hp Briggs and Stratton engine snapped so i drilled it out. I got as much of the metal shavings out as possible. After trying to start the mower it seized. i took the head of and saw that there were scratches in the cyclinder wall and metal shavings inside. i was sure i got enough of the metal shavings out but i obviously didn't. I thought that the metal shavings would be blown out via the muffler anyway.
what should i do now??? please help
