Hey guys. Ijust picked up a 1979 Kawasaki KE125. I pulled the top end, and I need to replace the piston/rings. the top of the piston is stamped with the number 100. I thought it might mean its a 1st oversize piston, but there is no decimal point to make it 1.00 I think standard pistons are marked STD, but im not sure. I know someone has been in the top end, because they thought it was a good idea to use liquid gasket in place of a cylinder base gasket. Any help would be appreciated in identifying the piston. Thanks!