I think you're showing the BB1 connector, that should be black + from the top of the pump cover to the relay and resistor.
You probably already know this.
BB1 should be, yellow-black,yellow-red, yellow-green(sender) and black, white-black(pump) if in fact that's BB1 for sender and pump. 5 active and 3 open pins.
Then again, it's 20 minutes to lift the seat up and pull the cover, stick a hose in there and drain it all. On a young 100 I wouldn't be concerned about gasket deterioration.
You probably already know this.
BB1 should be, yellow-black,yellow-red, yellow-green(sender) and black, white-black(pump) if in fact that's BB1 for sender and pump. 5 active and 3 open pins.
Then again, it's 20 minutes to lift the seat up and pull the cover, stick a hose in there and drain it all. On a young 100 I wouldn't be concerned about gasket deterioration.