I just recieved my 1975 F11 from my uncle who purchased it new in 1974. It has been passed through 2 of my uncles and one cousin. The bike was last registered in 1979 when my cousin wore out the rear sprocket and tore up the seat. he gave it back to my uncle and it has been sitting in a machine shed in Wisconsin since. He also gave me the title, the title matches the engine but not the frame. The bike has never been wrecked so I know that it has to be right. is this normal, did Kawasaki title these bikes with the engine ID number?