I know this is weird, I just changed the oil and checked it while holding it straight up and level, just like the owners manual said. The oil was perfect. I then put it up on my dirt bike center stand, so that I wouldn't have to hold it up. No oil in the sight glass. I think its so sensitive that if the the bike is raised in the front or rear on the center stand it don't show any oil. Just check it while holding it up, straight and level. PS. I also knew I put in 1 Quart (32 ounces) and 12 more ounces from another bottle.