You can use a multimeter to check coil resistance, do a search on YouTube for “checking motorcycle coils”. If they have the proper resistance you are good there, if not, then check all connections, and yes, module next. If it was running you can probably disregard timing issues. Good luck!I have a 2003 spirit. Won’t start. Cranking over, not getting any spark. How do I figure out what is wrong? Bad coil? Bad module?