Hello I drive a Piaggio ZIP 2 50ccm as 2 clocks from 2015. The scooter was standing for a few weeks. Yesterday I still had some 2 clocks of oil for my scooter. The one I usually use (no old, always stored it in my car). I wanted to get rid of the bottle, so I filled the oil tank and added a small shot (100ml) to the full tank so that the bottle was empty. Today I wanted to drive with the scooter: is immediately started, he ran perfectly. But I didn’t get far, because he sometimes took no gas on the approx. 200-300m. Then came up to the tank and refueled 2L of fresh fuel. Roller ran relatively weak in the stand. As soon as you gave gas, he went out. At some point he didn’t even run in the stand. So pushed home. Spark plug out, looked normal, but there was no spark. With my old Honda SFX 50 there was a screw on the carburetor where you Is there something like that with ZIP 2? I think the scooter is really built up. The service flap doesn’t bring much. I am grateful for every advice.