Small Engines (Lawn Mowers, etc.): stihl chain saw, oil leaks, pushing 30


Question
I have a 051AV chain saw i bought new.saw still runs great after all these years.but now the problem is when it sits for about a week without being cranked the bar oil leaks into the fireing chamber and locks the engine.then you take the spark plug out drain the oil flush the firing chamber with gas put the plug back in runs fine after it quits smoking.same thing again after a few days sitting. Thanks Tommy

Answer
Tommy,  There is a gasket that seperates the halves of this saw.  It appears it is leaking.  I am afraind that the repair to this saw would be greater then the value of the saw.  I dont even think you can get parts for it anymore as it is pushing 30+ years old.