The line that is closest to the carb flange is a vac line and goes to the topmost nipple on you fuel switch,the line closest to the back of carb goes to the nipple closest to the bottom of the fuel switch.the other two lines go to your fuel tank.the one closest to bottom of tank is ur reserve line while the one above it is your run line. You,ll probably have to install a couple inline filters as the ones in the ends of the lines are very difficult to salvage. Update (06/23/2016): As for the oil,you have one line from tank to the pump and a smaller outlet hose over to the rt. side of the crankcase. Hope this helps.