<div style="text-align: center">I HAVE THEFIXTOTHEOS 95AX PROBLEM</div><div style="text-align: left"></div> I have 2OS 95AX that I bought in 2009 and they ran great till summer 2011. The engine would be getting this mid RPM burbling noise and would quit without warning. I could get the engine to run great on the ground and then it would quit in the air. I pushed my troubleshooting and during summer 2012 I got 10 dead sticks. A true intermittant problem that made me sweet. All successfull landing with talent and luck.
I could go on and on to tell you my troubleshooting but lots has been said on this thread. What fixed my OS 95AX problems just before I was about to give up was to add a gasket under the head from my second OS 95 AX. YES! add a shim or gasket, what ever you want to call it and watch that engine come back to life. It is possible that just replacingthe head gasket with a new would be OK,but this is working great for the past 6 flights.