Hello my zip “6700 km” goes out constantly when it is warm. After that it is no longer possible to bring them to run. Even start pilot in cylinder without success.Funk is there I have renewed … intake nozzle and diaphragm block carburettor CDI with cable and plug. Tested whether side air comes by Startpilot hoses etc with warm engine, but no reaction. Compression 6 bar. Petronthan was tested i.o. With open tank driven. >Built is a manual choke! Lima gasoline tap and starters were renewed last year. Am really stunned and suspect possibly piston rings ? Or piston cylinder ? Charge controller ?