How to keep fuel up to the curb after shut off.

For those that have the long cranking problem,, that's caused by empty fuel bowls and lines,, perhaps this'll help,,

The mechanical pumps use a spring to keep even pressure/suction in the line,, and maintains that suction/pressure with the engine not cranking/running.. (Ever change a fuel filter a while after the engines been running and get a shot of gas?)

What I do, and suggest you do, when you know it's "crank" time,, is crank the engine 3 or 4 revolutions,, and wait,, what's happening is the fuel is now being moved by the residual pressure supplied by the pump,, wait maybe the count of 5,, then crank 3 or 4 times and wait again, count of five,, now try pumping the gas slowly while continuing to crank,, and it'll catch ..

Cranking and cranking, doesn't increase suction cuz the pump's spring is already compressed as far as it can,, so waiting in such a manner will save battery,, with the same results,, this really helps when you got a low battery to start with..

hope that makes sense and hope it helps..