Okay so I went to the dealer yesterday and got the 0,0,0 12 deal and will be getting my 07 yz450f friday:p . I havent had a brand new bike since my 80 days and am pumped. Just have a few general questions though. What kind of oil are you guys runnin during break in? I know that the stock chain is junk what do you just suggest replacing it with? Also I know on the 06's that a lot of ppl messed with the jetting. Did yamaha fix any of this for 07 or should I go ahead and pick up some jets while im at the dealership.Thanks and if anyone has any other suggestion post em up.