Supkri

Dear all, I'm a new user to this club so hello to everybody. Very happy to be part of this community. I have been riding my 2007 Yamaha XT660X for a while now and it rides amazing. However, some time to time bike has a bad habit of cutting off when releasing the trottle. I've read a lot about the common issue with the ECU for these bikes, also I suspect that the problem lies in ECU because after every cut off I need to turn my key on and off for bike to start again. So my question is: If I'd buy a new ECU what difference is between the one with the Orange label (B) and the one with Blue label (P)? Also, if you have a better solution for the problem than changing the ECU, I'd be very happy to hear about it. Kind regards, Supkri