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One of the Genuine dealers posted an oil change on the G400C:https://www.youtube.com/watch?v=ANRNJpTeSgsSarah
Dave, a nice used SR400 will be more likely $3000(maybe)-$4000, newer ones even more expensive. There is some clown advertising an SR400 for $1500, but that one is a scam. There should be more for sale in the spring, they seem to pop up pretty regularly. I think the newer EFI versions will be much easier to start than the older SR500 could be at times. I had several of them and liked them, but in the end if you want to fly, they aren't the bike for sustained higher speeds. Mine handled very nicely and I'd guess the newer 400's would also. A friend even had an SR500 w/ a sidecar that was set up pretty nicely...but that was more weight and unique handling for the bike.
Or here is an oil change on an SR500 http://www.youtube.com/watch?v=Ft1IkFZkJts&feature=player_embedded
I know bikes that required removing 14 bolts just to get the oil filter off!