While you wait for answers, we may have found some information which could help you.
Click here for Start Engine Plug Carb
my briggs and stratton 3.5hp starts up then cuts out straight away?
lawn mower engine hunting?
Petrol or diesel?
b/s lawn mower small engine?
Just overhauled 16 hp Briggs ans Stratton engine ?
what causes my Briggs and Statton petrol mower to hunt ?