Stihl dealers will not help you, they're will not even give you a copy out of any manual to help you. all they're are interested in is your money...have a look on ebay many are there, or make up one. China will make one for you...!
We don't just want to make $$$. Why would I be on this forum giving advise for free if that were the case. Government rules on this side of the pond. Remember when limiters came out, guys removed them and never put them back on.