So, not new to old changes, but first try on the speedmaster. I emptied her according to my haynes and ordered the oil change kit/filter from NewSpeedmaster. After draining from the plug and oil filter, I topped off the new filter, installed it, replaced the drain plug, and commenced in filling the oil. According to the manual and the quantity in my oil change kit, I should have used all the oil i purchased to fill the oil. However, only 3.5 quarts in and the bike measures full according to the site glass. Am I missing something? Unfortunately my oil light doesnt currently function properly (another issue in itself), so I dont have that as a warning indicator. Ran the bike and checked again after it cooled and the sight glass still shows right in the middle. So is there a better way to check the oil level? Just roll with it? Stumped.