well i do all my own maintenance and everything is fine. i did my big overhaul at 19k miles and i changed the oil, coolant, spark plugs, air filter, all brake pads, took all the calipers off and clean them individually before putting it all back together with new pads. i put on a new set of pirelli diablos and then put everything back together and put new brake fluid in and bled front/rear. Only thing i havent done is check my valve clearances yet and the only reason is because every single person with my exact bike that ive talked to about it has NEVER needed anything adjusted when they got their first service and more than a handful of guys have had them checked again at 25k and one guy had them checked at 30k and he still didnt need anything adjusted. im gonna have mine checked though in a couple thousand more miles before the summer riding picks up again