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XT 660X ecu

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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, 

Screenshot 2020-07-31 at 14.12.27.png

Screenshot 2020-07-31 at 14.11.58.png

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