The front sprocket nut and washer saga

[limax2]

along with thread locking the nut and giving a few extra NMs of torque pressure as well.

Along with the new 12mm wide nut Yamaha U.K. recommended a torque of 90 Nm instead of the original 70 Nm. I agree with the thread locking compound but I would be very wary of exceeding the 90 Nm torque figure. Your choice of course but personally I have gone for thread lock and stayed at 70 Nm.