Oil Filter
I think if the oilfilter was purchased from the dealer and you installed it and it ws defective of didn't fit you would have a valid complaint as to what they sold you, and partial responsability for any problems that occured. Mayn people want to save that hard earned money on service jobs by doing it yorself. Unless you are a certified mechanic I disagree with doing your own bike. I will work on most anybodys motor on cars but I refuse to work on my own unless I have no other option. They are responsable for checking a multitude of other things (sure to sell you some things too, but checking bolts, torque settings, and to many things to list here. Let them do their job and SUGGEST things to you that need replacing. the things that they do retorque should be covered by a warranty. They do get some money for doing this work from Kawasaki and they know all hte ways, ins and outs of all of the proceedures. I prefer t run more tire pressure in my tires than the dealer does, I also prefer to use my own chain oil, and after I get home after the chain is still warm, I take it out near the end of the drive way and lube it , roll it , lube more of it, roll it, lube it..untill I have the entire chain done then just park the bike so that only hte kickstnd is on te sidewalk or porch and it will not drip chain lube an dmak emy wife CRAZY about hte mess that I made (yeah, I did it once without papers on hte concrete...) They will advise you on air filter replacement/cleaning, changing spark plugs, all sorts of things that can bring them in some money. Let them earn their warranty money...it's important to catch loose blts in the suspension, steering, etc...