The Rotax 912 in my 2005 CTSW is acting up. It starts OK but runs rough especially at RPMs approaching idle. It will also stall at idle and will not restart. It seems to smooth out a little around 4000 RPM. There's never been a problem with the idle in the past. It's virtually impossible for it to restart once it stalls. It might cough and sputter a little but nothing resembling a normal restart. I also noticed a small fuel stain (12" x 6") on the ground under the blue tube from the fuel pump.
For reference, the engine has about 1250 hrs on it. It has approximately 250 hrs since the crankcase was replaced due to a fretting issue. We replaced the fuel pump at the same time. The ignition modules were replaced about then as well.
Would appreciate your thoughts.
Can highly recommend Jim Delveau in Ankeny, IA. Email - jdelveau@gmail.com. Mobile - 515-306-1424. Another possibility is David Silchman, dsilchman@nebflight.com. Mobile - 402-305-4994. David has a flight school in Omaha with a very nice CTLSi.