Have a 6.75 Briggs on a lawn mower; it was using oil and smoking a little. Head gasket was fine as were valve seatings. No scoring anywhere. I accessed the piston and removed the rings. Then I inserted the top and middle ring separately into the cylinder to check gap ... way over spec at almost .060. Bought set of new rings and inserted them into the cylinder; gap was about the correct .015. Just for kicks I compared the old and new rings by laying one on top of the other on my workbench....
B&S Piston Ring Question
B&S Piston Ring Question