well i have had new rings everything fitted new piston rings only done 100miles scince rebuild ect and checked oil to much in, also disconnected the oil breather pipe that goes in to air box cut a coca cola bottle 500ml 1 and put the pipe in there drilled a few holes in it for breathing and taped it in place and guess wat hey presto oil catch tank (temp) and not a bit of blue smoke out of zorst also took it for a hard run and checked bottle for level and there was only a little bit in the bottom watery oil so i think a oil breather kits on order should solve this