OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Trimmers and Brushcutters Two Stroke Trimmers & Brushcutters Stihl FS 56 fuel problem

That sounds like a question for Bruce - he may come in and set us straight. I did see one explanation of the difference between K9 and K10 here:


There is a PDF download file called "Carby Kit Information" from Outdoorking that seems to be saying that the D10 WA&T kit is the only correct one, as far as genuine ones go. However I've never had much success interpreting documents like that - I think Bruce is the man.