Carb gas leaks in with any engine are ususally due to a sticking float. Regular use of a fuel additive will help prevent it.

That's an engine problem, not a mower problem.

Its an attitude problem...a bad attitude from the manufacturers. We , as consumers, can, must complain to the right parties.. A high return rate would help..
This bad carb problems affects many of our machines ...maybe its the gasoline causing this.. ??
Several of my machines run poorly... I am spoiled by how well the cars run and for how long they run well...