While you wait for answers, we may have found some information which could help you.
Click here for Points Briggs Strattonmy briggs and stratton 3.5hp starts up then cuts out straight away?
litres of oil needed in a countax c600h ride on lawnmower?
Adding oil to mower ?
lawn mower briggs and stratton classic 35?
Petrol or diesel?
How can I fix Mountfield Laser Omega 46 Lawnmower?