A brief search yielded a couple results:
http://www.arboristsite.com/communi...tronic-quickstop-muffler.218329/#post-4042163
http://www.arboristsite.com/community/threads/my-stihl-028av-wood-boss-rebuild.199022/#post-3762735
I'm sure there is more info somewhere.
http://www.arboristsite.com/communi...tronic-quickstop-muffler.218329/#post-4042163
http://www.arboristsite.com/community/threads/my-stihl-028av-wood-boss-rebuild.199022/#post-3762735
I'm sure there is more info somewhere.