To answer your question Kevin, yes that is the rear tension release lever. But something doesn't look right about that saw. The black box under and by the motor is the speed control/on/off switch. I can't make out that it has the knob for the speed control. Anyway, if I were you, I'd be hot-footing to wherever that is and buy it. Heck, you could part it out and make money but that's not what I'd do. I think at that price, it's a very good deal. Are you near to where it is? Get going.