Check your battery. Mine was doing the same thing, when I first started my bike, the FI light would come on. After awhile the light would go away or if I cut the engine then restart it would go away too.
In dealer mode, it was error -C046. After researching, the exhaust control valve actuator (EXCVA) wasn't getting enough voltage causing the error. I tried to charge the battery but since the battery was about 3 years old, it didn't hold a charge that well so I got a new battery and never had a problem since.
What error does your bike say in dealer mode?