5 year old Qualcast petrol lawn mower, with 'power assisted' drive.
Full disclosure, the mower starts, but then stalls out after about a minute. Not related to cutting too thick grass - so it needs someone who knows something about motors to look at it. We don't know anything about motors - so apart from checking oil, gas and cleaning the filter we haven't looked into it further as we were already thinking about getting an electric / battery one anyway.
update : a kind Freegler offered this suggestion :
All it needs is a service/ carb clean. All information will be on utube. Very easy fix.
Qualcast petrol lawn mower (Sevenoaks TN13)
This offer has been gifted to someone and is no longer available.