DUDE! YOU NEED A BIKE HELMET! People don't realize just how dangerous a "simple bike" can be! At 22mph you are almost asking to be killed! And I still NEED YOU!
Tell me if this is what a lean seize looks like...
https://photos.app.goo.gl/SywYSJ2Z9EYyYVKG6
Aw, hell, I know what a lean seize looks like by now, and I know this is it. BUT! I have now polished that piston up, and though some of the scratch marks are still visible, I'd like to know if you think it might be at all worth my time to go ahead and polish up the cylinder as well, add new gaskets, put it all together again, and hope it will run. Here is a photo of the polish job on the piston:
https://photos.app.goo.gl/6Bm4fwrTvpCojPYMA
Stay off that bike until you have headgear!!!