Hello, would have needed your help again. I returned from a short trip on the weekend and had to find out that the Lagi under load starts spitting like a Lama at about 4500 revolutions and a deep buzzing. So dropouts of the worst kind. I read out now and it is not a fault. Test drive done and tested with relatively cold engine and really warm engine the same result. dropouts from about 4500 revolutions and an ear numbing hum. Otherwise run It’s normal. Stand on the hose right now. I checked everything and couldn’t detect anything.