I pulled the cord on my snapper riding lawnmower and the cord broke. How do I replace it?

You have to buy a new rope, remove the cover from the engine that contains the manual rope starter. There is a spring inside that can fly out and injure you if you do not know what you are doing. My suggestion is that you take the mower or the cover to a lawn mower shop and let them replace the rope if you are not comfortable tackling this yourself. It can be tricky to install the new rope and wind the spring just right.