I just bought my 2006 1000 and it has a FI light and says check coolant. its not over heating, do i just need to flush coolant or is this a bigger issue?
Well, flushing the coolant will certainly not resolve the problem, the bike has no way no know when you have to replace the coolant, so, I suggest you to reconnect the ECT and do some start cycles to see if the FI light goes away, maybe it's just an old error code from previous maintenance...