Did first change yesterday. All went well. Poured in 3.5 quarts like the book said. Tipped bike up after warming up and nothing showed in the window. I had my roomate hold the bike up and I added another almost 1/2 quart to bring it up to the level in the window. The only thing I can think of is, when draining, I tipped the bike up to drain completely and more oil drained out. Could this be the additional 1/2 quart?