What is good compression on a 10.5 hp Briggs and strattion engine?

Good compression for a 10.5 hp Briggs and Stratton engine typically falls within the range of 90 to 120 psi. Compression values can vary based on the engine's condition and age, but readings below 90 psi may indicate potential issues such as worn piston rings or valves. It's important to ensure that the engine is at operating temperature and that the spark plug is removed when measuring compression for accurate results. Regular maintenance can help maintain optimal compression levels.