Yeah, took the chain off first thing, knew that the outer support bracket (what I was calling the mounting bracket) needed to come off, didn't how to make that happen. That's what I was asking. I had the bolts that hold it on loose to the point that they were rattling around, but the problem is that there isn't enough clearance between the rear pulley and the bolt holes through the bracket to get the bolts out of there. While the bolts are still there you can't slide the bracket far enough along the shaft to get it off without the bolt heads stopping on the pulley. Eventually it came to me to loosen the pulley on the shaft and slide it and the bracket towards the end at the same time until the bracket came off. Thank god I didn't hit it with a hammer... After that it was over in about 10 minutes, didn't have to mess with the engine pulley at all and I'm just back from the test ride with everything working perfectly. In retrospect that whole thing seems pretty obvious, but I have limited mechanical experience and really hadn't ever messed with that system before. It came bolted on the motor.