Hello everyone. I recently bought of my friend scooter Kymco Miler 125. Scooter hasn't been used for long time (last time started a year ago). Replacing battery, which was the initial problem has been sorted out now, but after yesterday's ride I've noticed throttle problem. On certain positions of throttle (1/4 twisted mostly), when I twist it and hold it, engine not responding for a few seconds. After that when i keep holding throttle on the same position engine start responding. Mostly on full throttle engine responding without any problem. Described problem happening mostly on low rpm (1/4 TWISTED THROTTLE - under 4 - 5k RPM). Yesterday I stopped in the middle of roundabout twice because of no power. In my opinion cleaning the carburettor should help, but I don't have much experience in motorbikes so I am asking here. Any help will be appreciated