Thanks Knows. Unfortunately, The piston came off ebay as NOS (new old stock)
And didn`t have a leaflet with it, it`s a real Honda piston, it has Honda on the side of it and 25, So the book was all I had to go by. I did find another jug and honed it to .0025 clearence, but I will ask the guys at the honda shop what the clearence should be when I go for the cam bushing and washer. My nephew just reassembled his 200x and he said it ran great for a little while then went to busting at upper RPM`s. He noticed the head gasket was blown, I asked him when he used the different head did he have the head and jug milled to assure they were flat? he said no, I said no wonder. I really appreciate all your help. And I`ll keep you posted on how it`s all coming along, with my back being screwed, it`s slow, but I`m getting there and doing it right, cause I don`t wanna have to go back and do it all again. Thanks again Knows.