Fuel pump not priming

[Ilovecbrs599999]

I took out the fuel pump of the gas tank to test it- I removed the gas tank, took off the fuel filter. disconnected the fuel injector hose to the fuel pump.

I wanted to do something like this video: https://www.youtube.com/watch?v=ZFuSvNtbVBM

then reconnected the fuel pump to the motorbike so that I see if I could hear the whirring hum sound you hear for a few seconds when you turn on the ignition. No sound. Power was reaching the pump I used a multimeter to check- there would be a spike in voltage for a few seconds when ignition turned.

I then thought maybe it's because the fuel injector hose (still connected to fuel injector hose which itself is also plugged into engine) is not connected to the fuel pump- that must be why it can't prime....Nope. nothing.

There is no way there can be anything wrong with this pump- the bike was running like clockwork before I decided it strip it and test it...
Must it be in the gas tank with the gas tank having some fuel in it, in order to hear that humming sound at the start? If that's the case I'm really confused by that video...

[Ilovecbrs599999]

Yes I'm sure but need to look at the present problem and find an explanation/fix

[Ilovecbrs599999]

It's a wiring connector which connects to it and there's only one way it goes on.

[Ilovecbrs599999]

0V

[Ilovecbrs599999]

I was wrong about the slight spike in voltage I mentioned sorry
0V before ignition turned on. 0 V after ignition turned on

[Ilovecbrs599999]

I tested again and realised I fked up. I mistook multimeter fluctuations at near 0 voltage for actual voltage reading. It fluctuated at the wrong time. I think the ECM is cutting power to the pump because it detects there's no fuel.

[Ilovecbrs599999]

i called the honda dealer- he said it wont prime outside the tank- my suspicion was correct.

[Ilovecbrs599999]

yeah but the prime's not broke so who cares