I have a RV6 with a O320 Lyc with a fixed pitch prop that occasionally hiccups while reducing power from about 2240 RPM to approx 1800 RPM to about 2100 RPM range. Carburetor is new rebuilt M/S MA-4SPA purchased from M/S. The spark plugs were replaced about 40 hours ago. Mags and spark plug leads changed 150 hours ago. I try to lean the mixture on the ground. Mag drop normal. A/C based at KTOA.
Thanks for the help.
Thanks for the help.