We may have found other answers which could help you.
Click here for Four Stroke Oil
Briggs and Stratton SP470?
Petrol or diesel?
my briggs and stratton 3.5hp starts up then cuts out straight away?
what causes my Briggs and Statton petrol mower to hunt ?
lawn mower won't start?
Just overhauled 16 hp Briggs ans Stratton engine ?