Yea i own a yfz 450 and i was wantin to kno if anyone knew how much oil goes into the crank case i was thinkin its a 1/4 or one and 1 3/4 in the black one with the dip stick...lol i lost my book that tells me so i was just askin if u guys knew or could get back to me as soon as u can thanks alot for your help