For the oil change, my local Yamaha dealer carries an oil change kit. You get Yamalube, a filter, a new drain plug washer, a pair of rubber gloves, and a keychain. Oil is all about preference, but if you prefer Yamalube this is a foolproof option.
This is basically what I do. I pick up 3 quarts of Yamalube Full Syn, 15w50, filter, and compression washer.
1. Warm bike up to 100 degrees
2. Remove drain plug bolt located on lower left side (I use a sealable gallon size drain catch from Autozone, and in a pinch one time cut a used spring water gallon jug)
3. Remove Oil filler cap to speed things up
4. Remove oil filter with rubber strap wrench (also from autozone). Be careful about getting oil all over the headers.
5. *** I personally will pour about 1/8-1/4 of a quart of fresh oil through to rinse. This is probably wasteful and I only read it somewhere and it sounded cool.
6 Open new filter, and fill up halfway with fresh new oil. Rotate around to make sure that the oil fills all the fins of the filter and the rubber gasket ring gets some on it so it's lubricated.
7. Install new filter on bike. Hand tighten then give one good crank (5 pounds force) with rubber strap wrench.
8. Remove old crush washer from drain plug and put on new crush washer on drain plug and install on bike. Be mindful to just barely crush washer so not to break off bolt head.
9. Fill 3 qt. oil using funnel purchased from dollar store (perfect size and only a dollar).
10. replace filler cap.
11. Fire up bike and let run for a minute. Then let sit and check fill level on window lower right of bike while on center stand.
Have fun. I get this done in a little over 10 minutes now days (I'm pretty sure I changed the oil 7 times this last year).