Good afternoon, I have a Speedfight 3, the scooter has a throttled sports exhaust of “Stage 6”, an open air filter of Stage 6 and an open CDI of Doppler. The scooter went out during the ride, because I had no oil in the tank, whether that really was because of it, I don’t know. There could be bars on the piston, in spite of that it should go on. When kicking one also hears how the piston works. The scooter has sparks of ignition, gets also gasoline and has compression of measured 5 Bar. Despite that, he doesn’t start. I’ve already sprayed brake cleaners into the carburetor and stopped the exhaust, still didn’t work. Could someone please help me?