Bought the bike used. Checked the oil before riding. It registered as full (I know now that this is not right) and the oil looked clean. Owner said he had just changed it. I thought I had nothing to worry about. The filter was clean and the chain was freshly lubed. Bike seemed clean and well maintained, so I didn't give it a second thought. Took it out for a couple of hours this weekend and didn't notice anything out of the ordinary. I decided to look here for any maintenance issues, get the oil change proceedure, and so on. Took Grayracer's advice and bought 2 quarts of Amsoil and 2 filters and headed to the shop to do the first oil change. I downloaded the manual and I checked the oil change procedure there and on here and got to work. I drained the oil from the front left drain plug with the dip stick out and got about 3/4 of a quart out of there. It was dirty, but nothing shiny or gritty in it. I took the rear drain plug out and I got what appears to be at least 2 more quarts out of it. This oil was also dirty with nothing shiny in it. So, all told just under 3 quarts of oil were in it. Then I take off the Ready Filter cover to expose the stainless steel filter. Hmmm....shouldn't the open end face out? Grayracer said so.... Holy Crap..... Wait....the new paper filter has flat rubber gaskets on each side. The stainless filter only had a rubber gasket on the edge with the open end and the open end was towards the engine. Ok, what did I get myself into? What type of damage did I cause with the filter in backwards and the engine overfull? And secondly, do I have a stainless filter that is missing a flat rubber gasket on one side? Third, I put the paper filter in with the Ready Filter Cover. I didn't get the stock filter cover. Will the paper filter work just fine with the aftermarket cover? My plan is to fill the bike with the correct oil level, but use some cheap petro based (Yamalube 4) oil to circulate through the engine for an easy hour, then drain it and change the filter a couple of times. A couple of observations. The bike did not smoke from the muffler or burp oil out of the breather tube. The only issue I saw that appeared to be abnormal was the radiator fluid was at the top of the fins and not full. I topped it off with Engine Ice before I rode and it burped off a little while I was riding it. The level seemed to drop until it reached the top of the fins and then never changed. Reading here, I see that is normal. What do you think?