On monday im picking up a new to me 2005 or 2006 yz250. Bought new and used in a farm(its from a relative)... I ride street (82' cb750, 84 virago 1100, 03 954 rr). Its been a long long long time since i've been on a dirt bike, im 5'7 170 pounds. He still has the piston that came with the yamaha kit, and only been used sporadically.. I need advise on: 1.Special tools i might need, 2.Brand of oil and weight. 3.Brand of coolant What too look for before taking to the track, etc etc, I can swap a cam chain in a cbr with my eyes close, but when it comes to smokers you might as well give me a sledgehammer to do a brain surgery any help is appreciated..