HDS 3185 question. fuel in the fuel filter, when start up the fuel in filter is sucked up to the fuel pump, but then no more fuel is advanced and visually not seen in fuel filter? i dont see any fuel being advanced to fuel filter? 2. how do you get the seat mount off. i see 4 nuts to undo but u cant get a wrench in the seat channel to small. trying to remove seat. to get to the top of the fuel tank to check out a fuel sensor or some what that is at the top of tank?