I havent pulled the recoil starter cover and checked the coil but I dont think it is running lean cuz it is 4stroking good at WOT and cleans up in the cut but if I back off on the throttle while in the cut it starts to 4stroke again. Also after a good cut I shut the saw off and the plug is a good milk chocolate color. If that means anything. New to all this but I will check the coil. I just really want to know if 12200 is good pullin a 28in bar WOT unloaded or can I get more out of this saw without doing a woods port on this??????????????
IF IT WAS LEAN THE INSULATOR ON THE ELECTRODE TIP WOULD BE SCARY WHITE!!!!
If its dark brown it cant be lean,,, if you have a bore inspection light iwould check the top of the piston toward the exhaust port,,, color should match the plug,,
if it does run tha pizz out of it,,,,,
definitly sounds as though your coil is rev limited,,,,