Briggs and Stratton 3.5hp No Spark

I have a 3.5hp Briggs on a Snapper. I checked and it was getting no spark. I cleaned the contacts on the magneto and flywheel and still nothing.

How should I check to see if the "Kill Switch" is grounded out? Before I go buying a new magneto.

I don't know where it is.


Engine s/n: 92908-0703-01 7206168