Chainsaw Repair

al, those gaskets are supposed to be flexible rubber, not hard plastic. i've tried to make some gaskets but without the little raised lip around the surface they tend to leak and pull oil into the engine.
another place to watch out for on the 10 series saws is the 4 bolts that hold the tank to the cylinder. they are suppose to have either an aluminum or a firm fibrous gasket washer behind the heads to seal them. i can't remember how many times i have fiddled with the oiler thinking it was the culprit only to find out after hours of labour it was an easier fix than the oiler