That's the bit I don't understand CaptMoto.

My XTX comes in that range and I've showed the paperwork to my local dealer and they say my bike needed the TPS changing only. I didn't really know what to say back to the dealer so I went with what they said. Then curiosity got the better of me and I called Yamaha customer services and I got the same story back from them.

The changing of the TPS made quite alot of difference. It would definately be worth mentioning that to the garage tomorrow.