I am about to grab a '14 YZ450F with about 35 hours. Previous owner was a friend of mine, always maintained by the dealer (tech is also a friend). I know a bit about the bike in general, rode a '14 250F and loved the ergos and stuff. Been riding Yamahas (mostly 2 strokes) since 2002, been posting regularly in the 2stroke section but new to the 450 section of TT. I don't plan on modding it much except for suspension, tires and a braided front brake hose. Maybe an exhaust for looks if I find a good used deal. As I want to keep the bike for a long time, are there flaws that I should address or things to look for? I'm basically looking for little tips from people who have had the bike and know its flaws. Thanks guys.