Ebay seller saw king is selling a 797 with what is apparently a 125 motor. He is saying that this is a big upgrade. I thought that aside from the av, right hand start, and carb that there weren't that many differences/advantages. This hybrid won't have the 125's av, so what are the advantages/ differences. I have both saws and my 797 seems pretty strong and I don't see a huge power advantage in my 125. Help me out guys. I would understand if he was claiming that it had an MC101 motor.