I have a 98 Fatboy with 6,000 miles on it and it has ran fine since day one but now this spring it will start and run fine then all of a sudden it will immediately shut off driving down the road.(It still has full electrical power and turns over but no spark)It has done this 3-4 times and the one time it kinda popped and back-fired first beforeit died. If you let it sit for awhile it starts right back up and runs fine and maybe for the whole day. I checked all the wiring I could and the connections and they seem okay. Does anyone know if it is a coil, ignition box, etc.... Any help would be appreciated...

Thank you

 

Often times when the ignition module starts to go bad, it will heat up and stop working, then when it cools back down will work normally.