What’s Happening , I was running my engine for a warm up and battery charge, and after 15 minutes of 1200 rpm, in fwd gear, my engine “stumbled” like it started missing on one cylinder.
This happened briefly , but since it never happened before I was alarmed.
I checked the obvious , fuel level in the Racor sight bowl, and no plastic bag on the prop.
It didn’t drop RPM like when I run out of fuel , but the engine recovered and performed as usual for a while , then it happened again , later again , but each new happening the event was shorter .
Any ideas out there to help me understand this unusual event ?