How do you adjust the coil on Briggs and stratton 17.5 engine?

Spin the engine until the two legs of the coil lines up with the magnet on the flywheel. Place a standard business card between the the flywheel and coil and let the magnet hold it in place between the two pieces. Tighten the bolts down. Spin the engine and get the business card out and you're ready to go.