not s? if someone did ? never happened but I have a problem on this bike told the owner about two months f? he did work the heads from what I could understand they polished right a p? work has reassembled the all the mechanic for? removed the throttle bodies and says he has them cleaned and then governed by and here we are now and the owner complains that the bike in the release drops quickly to a minimum, I said if the motion is accelerated by the 2500giri to come down and then told me that the minimum when the engine is warm ? around 1400giri now the mechanic wants to change a p? all the stepper in the igniettori the farfale of the bodies or even the complete body but!!!