So i have a 2012 350 sxf and 2012 250 xc. I race harescrambles and im starting to get tired of the smoker. So im thinking about putting my parts on the 350 and racing it next season. My question is does anyone know ruffly how long you can go on the tank? If i could ride the full 2 hrs on it i would rather not get a new tank just cause thats i like smaller tanks.