Well alot of the odd stuff that Terry did is explained now I spose. I always said he was the mad scientist of engine builders...and this engine is another good example of that. He made it work with what he had. I sure wish he would have had the correct pinion gear tho. I feel like I'm getting better at this shit my damned self too. I didn't put the cam chain in until I was ready to mount the head...recommended. I used my strap wrench on the flywheel to hold the crank at TDC while I installed the piston and cylinder...recommended. I made a makeshift ring compressor out of a quality water bottle and spring clamp...recommended. I learned to install the wavy oil ring first...then the thin steel oil rings...recommended. I learned to install the rings on the piston at the kitchen table while wifey is at work, then hold them in position, correctly gapped, and compressed into the grooves with the spring compressor, until the piston is installed into the cylinder...highly recommended. I learned to wait until the wrist pin is installed, with both clips in place before I oil it all up...recommended. I would like to be able to just put this engine back together, run it for a minute and then send the bike back to my son. But...I'm a little scared to do that. I DID watch the oil temps during break-in...diligently, when I was breaking it in. It only would run hot during long runs at WOT. But, it WOULD run hot. I worry if he will be as diligent as I was. Then there is the discolored wrist pin. I'm thinkin I have to add a cooler before I send it home with him...for good measure, and a job well done, and all of that. I worry it'll be a pain in the butt, AND ugly when it's done. It don't look like the doc got my parts shipped today.