Does anyone have a sketch or schematic of the lines from the top of the tank and where they go? There is a rubber line on mine that just begs to be hooked to the fuel filter,but isnt. so I blew through it, no bubbles nothing happened. the line to the filter appears new ?maybe someone replaced the other, dont really want to drop the tank. put on a new filter, checked it out and a hose blew just under the oil cooler, Durn,! got the engine flushed tho.