Hello to the specialists, my ATU Roller Explorer Generic B05 2-stroker goes out from time to time simply on the way and then jumps after some time or felt 300x over Kickstarter again and drives as if nothing has been. Strangely, the stationary gas turns from time to time at the traffic light so that it wants to start off. Another time the stationary gas goes into the knees so that I have to hold the gas again by hand. Could the event. also lie on the battery because the is very weak and over E-S Where can I start troubleshooting? Must say that I don’t have a lot of idea about scooters. My 2-stroke mofa times have been too long ago. Thank you in advance for your help.