And if you have FI, you can use the relay board jumper trick to force the
fuel pump to run when the engine is not.
See the
Fuel Pump for Carbs Tech Article if you aren't familiar with this jumper.
Just be careful about your Electronic ignition or coil while running the pump with
the Ignition key on. Some can fry if the engine happend to stop with the points
engaged or the electronic module enable by the magnet sensor.
It would be best to disconnect the ignition system.
I'd disconnect the coil at a minimum.
But depending on how much gas you have by the time you read all these posts
and rig up something, the gas could have drained out from the fuel lines
in the lower engine compartment by simple gravity.
--- bill