Trying to adj float height on 03 cr 250 with mikuni. The book says set it to "x" millimeters once the float valve contacts the float tip." On my carb the float valve rides on the float tip so it is always in contact. That makes it hard to set the level. Also on the valve is a little "tit" that compresses into the bullet shaped valve. Is the measurement taken with the bullet seated and the "tit" compressed or just at the point where the bullet seats and the tit still extended? Thanks