Thanks Rainman. You're absolutely correct that Tygon Yellow hoses don't break down like the Stihl factory hoses. The fix is simple, replace the hose( can do yourself for $2.00). It's interesting Stihl doesn't just use Tygon Yellow during manufacture. As a matter of interest, my repair shop does recommend Stabil because in their opinion the hose's shelf life isn't significantly diminished by Stabil & they see a lot less carb problems with it's use...du
