Yamaha YP 400 Majesty engine goes off

Hello, friends! I have had massive problems with my majesty for half a year! During a tour to the North Sea the following problem occurred!When starting after idle, the WARME engine starts from time to time quite simply, of course always at the most inappropriate moment!The engine could start immediately!At the same time I had with the immobilizer and the CDI Trouble! There were various, inexplicable error messages, why the entire control unit was exchanged together with the immobilizer w urden! My workshop has measured the electrical system, cleaned and tested all plug connections, but still ticks the car, but only with a warm motor! The cooling water circuit has been tested, thermostat and sensor has been renewed, the fan has been checked, but the error still occurs, WITHOUT that an error would be displayed in the diagnostic program! Also the temperature display in the display is in the green area! Hours long test runs in the workshop were faultless, why my screwdriver mi Meanwhile with its Latin is at the end! I also now! Also the petrol pump, which I initially suspected, has been renewed! Currently the error also occurs during the ride, because the engine temporarily takes no gas and runs out while rolling out! But can be started immediately! Does one of you have any idea where I could still look for? By the way, all values in the diagnostic program are in order! Actually, I have the intention to keep the current mileage of 94ooo still 6st I’m grateful for every tip I haven’t tried yet! Jule I’m grateful for every tip I haven’t tried yet! Jule I’m very grateful for the help I’ve given you in the last two years.