SOURCE: 79 harley ironhead 1000cc xlh no spark from coil
It sounds like your sensor in the timer cavity on the right side of the engine is bad. Disconnect the blue wire from the coil. Take a spark plug out of the engine, put it back in the spark plug wire, and lay it on the head. Turn the switch on and momentarily touch the blue wire to the coil. When you take the wire off of the coil, you should see a spark at the plug. The purpose of the sensor in the timer cavity is to stop the flow of current in the coil and initiate a spark.
Good Luck
STeve
SOURCE: won't start, plugs on cylinder
CHECK THE SENSOR IN THE CONE ON THE RIGHT SIDE , CAN BE AN FAULTY SENSOR, IF YOU HAVE TACHMETER CHECK IF ANY READING FOR RPM WHEN TURNING ENGINE, COIL ON THESE XL BIKES HAVE BEEN POOR, AND I HAVE MY SELF AN 2002 XL THAT THE COIL WHENT BAD AND DAMAGE THE IGNITION MODUL ALSO.
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