Hi guys!
I've bought my xtx 4 days ago - 2nd hand without warranty. I didn't notice any cutting and surging. Only when I ride on 2nd gear at very low rpm (without touching the throttle) and then try to accelarate slowly - it starts to surge.. Maybe it's because the rpm are too low?
Anyway my frame number is within' the faulty range, don't know about ecu yet..
EDIT: just checked my ecu No. - it's the bad one
Tommorow I'll visit my dealership - wonder what they say - without warranty..