I had someone give me a Ryobi RY10532 40cc saw. Changed the oil pump and drive gear for about $10, removed and drilled out the muffler, changed all the lines and fuel filter. Ret-uned (take a Single D tool), runs pretty good, but, not consistently, though I will probably get it done this week. It really likes the real Oregon S62 chain. I noticed when you lean on it, it does change the idle speed, it is alright for what it is, a free saw. Since I drilled the muffler and tuned it, it now cuts faster bogged down in the cut then my Atlas 80v chainsaw running the same saw bar and chain. I decided to bring the Alas 80v down to a A041 14" bar using Oregon chain, hardly ever stalls now and can run into 1 bar left.