Hello dear community, my name is Annett and I am 45 years old. Currently I have a Yamaha Why with a mileage of 6743km. I live in the country and am dependent on the scooter. However, since recently the scooter causes problems…… Whether cold or warm, the scooter starts and remains around 10-20 seconds rotary zal stable. when I turn at the gas handle (within pre-named time), the speed tolls evenly high. But then, at half-gas, the engine dies off or just comes down with spins of This morning I challenged my luck again and drove a few hundred meters….. With full throttle… (45km/) 😉 I made it to the next junction, where then the engine died off. He let himself start again…. but did not want to go out over stand-up throttle and went out during these attempts or swallowed several times. Piston clamps or broken rings etc. I can probably close out, because the engine, from the mentioned Probl In the last 5 hours I have carried out the following work and tests on the scooter: – Ignition plug (lightly wet and black) tested and replaced for safety – petrol tank degraded… filter as well as petrol tap controlled. filter clean and petrol tap., positive tested by vacuum control. – air filter removed. box as well as inlet/outlet clean and filter tiles removed and disassembled according to manufacturer specification – carburettor……….. . – Gas slide diaphragm apparently ok. – Gas slide valve very light-gäng – Main and auxiliary nozzle removed and cleaned. – Gasifier completely cleaned – Float and float valve does not hang – Ventilation not added – CO as well as stand gas screw set according to manufacturer specification – Cold start automatic dismantled and positive tested with external battery – Intake nozzle dismantled for cracks tested. Obviously ok. – Seat and condition of visible plugs and cables tested . Apparently ok. Everything reassembled….Start…. Problem persists…. orrr neee Second start and now sprayed with start-up pilot on the suction nozzle. Also no change. Dear community, I am now quite helpless and helpless. What can the problem be? I thank you very much for your help.