I suspect that I have a bad ignition module. It is located under the flywheel it is red in color has 336-4524 on it it has five connections. One goes to the condenser and both spark plug coils (green wire), one goes to the stop button (salmon wire), one goes to one stator coil (blue wire) onen goes to the other stator wire(red wire), and the last goe to bothe stator wires (yellow wire). What is in this module and how do I test it. if bad where can i purchase one.