Carb overhaul. Its a Walbro diaphragm carb and the diaphragms have a short life. I think they just degrade. My saw is a 1983 and I've had at least 5 diaphragms in it. Also the fuel line is really important, make sure it's a good fit on the unions because the carb actually sucks the fuel in and if it can draw air into the fuel line you'll get loads af really annoying problems.
I have used my saw very heavily over the years and have no other problems. The carb and fuel line are the only issues. This saw is actually a Sach Dolmar 100, Austrian. The carb is American, draw your own conclusions.
English Fred
September 2008
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