Motorcycle Repair: 1997 Dyna Wide Glide Harley, ohm meter, plug wires

Question
My bike keeps fouling spark plugs.  The engine is stock.  The bike was running fine, then all of a sudden it started fouling plugs. Please help.

Answer
Fouling plugs can be caused by either bad carberation or bad ignition. SInce you said it was running fine, I would suspect the ignition system. Do a OHMs test on the coil and the plug wires. If you need to know how to do the test let me know. You will need an OHM meter to do the test. If you have a weak coil and plug wires you will fould plugs.
Good luck and happy riding
Mike