I just installed 2 Pmags. The rpm at medium to higher rpm is drifting up an down 200 rpm from what it really is. The engine is running very smooth and the AFS worked fine prior to switching to Pmags. I changed the rpm wire to pin 33. Not sure what the problem is. These are new Pmag model 114s. I am not sure if it is the AFS, Pmag or noise being picked up on the wire. Anyone have any ideas?
Ric