Good day, I bought me a generic xor 50 used little km , the owner had changed the battery and the carburettor because of longer standing time. My problem is it drives only 25 km h ca, have new open cpi , new gasboutenzug retracted , variomatic throttle removed (drossel ring removed , WEIGHTED SET, clutch springs renewed , clutch bell renewed ) And when I give gas it drives in the last third of the gas grip rotation . Is not true the carburettor is slow to find no at all I don’t know about the electrics.