TuneECU is a free programme which will allow you to diagnose, repair, and modify the ECU and tune in your bike. It is excellent software and there are many of us on this forum who will be happy to help you get up and running with it. You will need to get a cable to connect your computer to your bike. It is a USB cable which plugs into the OBDII port on your bike. This is located inder the seat, next to the fuses and battery. You can get a cable from
PowerTripp who is one our members. Wayne (PowerTripp) is a top notch bloke and will look after you if you email or phone him for a cable. He is also the man to tune your bike if you want to get it dyno tuned.