I recently brought the 'Busa in for servcie because the FI light had come on. It turns out when I stored the bike for the winter in my garage, a mouse had nested inside the bike and chewed through various wires causing the FI light to come on. The dealer recommended putting mothballs around the bike if it is stored again. The upside to the story is that after feeling I had neglected the bike, I had the dealer install a Yoshi RS-3 full system and a power commanderII. I would definately recommend a 4-2-1 systems, it adds a whole new dimension to the bike.