I used a flex hone that goes in a drill. I did not just hone the top area where the scratch was. I moved the hone back and forth through the piston. It wasn't as nice and pretty as when the shop did it, but I kept it moving. I think I had the drill going too fast to make the lines as angled as the shops hone. But I don't think it would be tapered. I didn't let it spin in one spot. But if a flex hone won't do too much to change the clearance, then I should be good. I just need to get a new top ring. For some reason it didn't want to fit in any of the cylinders, and various pistons. And it came out of the same kit. Something is wrong with that ring.
