Toss those afm decomps before they take out your whole top end.So here’s the rub.
With any forceful pull of the starter cord the decompression valve automatically pops back up. I am under the assumption this is a failure as the decomp valve should only reset when combustion happens.
IMHO use a OEM husky decomp. 2nd OEM stihl one. 3rd plug if you can do it. But that will break those afm pulleys quickly.