We may have found other answers which could help you.
Click here for Lawn Mower Engine Repair
How to fix a problem with briggs&stratton hp407engine?
Excessive Compression?
Just overhauled 16 hp Briggs ans Stratton engine ?
what causes my Briggs and Statton petrol mower to hunt ?
lawn mower briggs and stratton classic 35?
Briggs and Stratton SP470?