I just bought a banshee for $500, needs carb work.it has 69.42mm pistons, trinity stage IV head, billit carb clamps, carbon fiber reeds, reed spacers, pro circuit 304 pipes and silencers, carbs off a snowmobile (not sure what size, the guys said they were off a 440), pro flow filter thing with k&n on it.the main jet is a 190 and it doesn't want to run, it will start sometimes but it goes full throttle for some reason. the carbs are mikuni.any help would be appreciated. It has 130psi in each cylinder.bought it because it was cheap.