How do you check valve clearance on Briggs 16 hp engine?

To check the valve clearance on a Briggs & Stratton 16 hp engine, first, ensure the engine is cool and disconnect the spark plug. Remove the valve cover to access the rocker arms and use a feeler gauge to measure the gap between the rocker arm and the valve stem. The typical clearance specification is usually around 0.004-0.005 inches for intake and exhaust valves, but refer to the engine's manual for exact measurements. Adjust the clearance as needed by loosening the rocker arm adjustment nut and turning the screw until the desired gap is achieved, then re-tighten the nut.