So it snowing hard which means riding season is done and time to start to tear apart tc250 to figure out why it burning oil. I checked valves and on exhaust .229mm feeler will go in but .254mm will not. On intake .152mm feeler will go in but .178mm will not so they seem close. The spark plug looked great not wet or black nice tan color. The top of piston looks great on top looking down spark plug hole think I could see some numbers on top of piston. So where is the oil going might pull motor out and send it away to a shop I bought bike at to what they can figure out. If bike is burning this much oil you would think plug we be black or sooty. Is there any other thing to look for. Thanks for any help.