I bought a 2003 busa and experienced false neutrals between 4th & 5th and 5th & 6th. This problem has been apparent since the busa was introduced and Suzuki have done nothing to resolve it. I have recently received a full refund for my busa plus costs for the independent test carried out on the machine.
If you look through this site you will find this fault has proved problematic for many owners.
If you look through this site you will find this fault has proved problematic for many owners.