Buzzing sound on startup and slow return to idle?

[ridesalot_imp]

Weraignsupreme, I do not hear anything unusual in your video. If, as you say, the buzzing sound stops shortly after the key is turned on, I would consider this part of the normal process the CPU goes through on start up. If a sensor is malfunctioning the CPU will throw a fault leaving an orange service engine light on your dash. (on some bikes, turning on the ignition with a disconnected sensor will do the same)