I have a 2000 FLHTCUI with 56K that has been increasingly "shutting down" in slow to medium speed situations most associated with stop and go / city driving conditions, it does not show itself under interstate / constant speed / good air circulation driving conditions. This problem manifests itself by "what appears" to be a complete shut down of the ignition system, with power remaining to the lights, gauges, radio, etc. I can re-start the bike almost immediately by hitting the starter switch, which does not require recycling (shutting off and turning on) the electrical system at either the ignition or engine shut off switch. Upon re-starting the bike runs perfectly until the next occasion. This situation is present in both wet and dry conditions and not isolated to only hot weather conditions; it also does not produce error codes and therefore been very difficult for HD to diagnose and address. Of note is that this condition has been present since the bike was new, occurring very infrequently…… but has now become much more frequent making this bike dangerous to drive. Any ideas?