At about 650 miles on my '17 FE501 I started getting this condition where the bike starts and idles just fine. After it warms up while riding and coming to a stop it's idling much higher. Turn off the key, restart and it idles fine again, but repeats the cycle. My dealer thought it was something causing the bike to sense a lean condition. The air cleaner can be freshly cleaned which seems to have no affect on the condition. The bike is completely stock meaning it still has all of the smog/EPA stuff on it. Before I take it in to the dealer to pay them to figure this out I'd like to try this forum. Any suggestions? BTW I did search on lean but I didn't find anything similar to my situation.