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Yes
0.004 - 0.006"
cawl sistem
http://www4.briggsandstratton.com/miscpdfs/RNT/Engine%20Specifications%20Chart_ms3992.pdf
Briggs doesn't publish engine compression specs, but 120 is good. 100 is okay. 80 is lousy.
0.006"
.004-.006
the intake valve is bigger
Briggs says on a cold engine, .005 on intake & .007 on exhaust. Wider on exhaust to ensure you don't burn a valve.
005 in 007 ex
0.004" would be correct. See the YouTube link attached below for the procedure.
.007 on the intake and .011 on the exhaust.