No, you sure aren't a bonehead. Now I understand your confusion when you had read earlier threads, one by Brad Snelling, one by MCW, & some others, all of which described the "internal rib on the alloy sleeve" which contacted an external rib on the "alloy jacket" & some plastic tabs at the base of the needle (I described this in detail in a reply to your thread). Stihl has pulled a switcheroo & has changed the way in which it has limited the H needle. I was scratching my head too when you indicated that there was no "internal rib". Interestingly, I also have an MS201, & the round metal "pin" in the alloy sleeve is exactly the same design as Low Volt has described on his MS261. I don't know when they changed the design, but I suppose they were reading about many of us removing the adjustment limitation & decided to throw us a curveball. Many thanks to Low Volt for a very helpful & detailed post. Why Stihl keeps on sending this saw out with a setting which is too lean & which cannot be changed without modification is puzzling. There surely must be some scored P&Cs & some totally fried saws as a result of the factory settings. That is lousy PR. Makes no sense to me!!
&^*^ 
