Rough running around 5000 rpm
in 912 / 914 Technical Questions
2 years ago
Hello All, I have an issue with my Rotax 912ULS engine. Total 60 hours. The prop is an Airmaster c/s.
When in cruise around 5000 rpm the engine suddenly runs a little rough for a second or so. I can feel small ‘kicks’ from the engine and the rpm drops 50-100 rpm. But just very short before it goes back to normal, but just to misfire again after a few seconds or sometimes after half a minute. I don’t feel anything when under full load at T.O. I do not have a drip-tray (heat shield) under the carburetors.
Have some of you an idea about in which direction to trouble-shoot.
