Why does Sears Snowblower overheat?

Well, maybe not all of them overheat, maybe only yours does and is having some problems. It would be best if you go to the store and explain what happens for a refund or ask them for more information.

Maybe it is supposed to go hot, and you think it is overheated, though?

It is very good to go, since this could lead to fire hazards and problems!