2014 v4 on virgin tour, 4100 miles. flawless, except 2 unsettling instances: cruising along, out of nowhere the bike loses power & 'urgent service' flashes on dash. pull over, turn off bike, restart, in 3 miles, message disappears & bike rides normal. happened at 1100 miles, again at 2900. nothing strange about conditions. if i was passing, or in a tight spot, could've been dangerous. any ideas on this one?? help!