What is the exact, correct name of the Yamaha YZ woods bikes they used to make? I am just interested in the two stroke versions names. It may have been YZ200W / YZ250W, but I am not certain. Does anyone know of some general information websites people have for these models? I am referring to the perhaps late '80's to '97 - ish two stroke powered models, not the current / recent four stroke models. Thank you.