Hi, the oil tank on my K2 has a small breather pipe on the top under the seat. It looks that there should be a pipe attatched to it. The previous owner had blocked it off with a small piece of pipe and a bolt this I knew was wrong. There is no mention of it in the Haynes manual that I can find. Should the breather pipe from the top of the engine connect to it. Oil comes out of the tank breather under load. Any helo appreciated. Thanks Adrian