912 ULS runs rough at 2500 RPM
in 912 / 914 Technical Questions
11 years ago
2009 912 ULS with 500 hours total time. Engine runs rough at 2500 RPM (like one cylinder is misfiring). New Mc Farlane dual throttle cable and new spark plugs. Carb sync is right on at idle, 2500 and 3500 RPM. Engine runs very smooth at idle and above 3000 RPM. Periodically it runs rough around 2500 RPM. Other times it runs smooth at 2500. Mag check at 2500 and 3500 RPM yields 70 RPM drop on either mag.
Tony
Tony
