Need help starting unmounted Merc 2-stroke

[barrike]

Last year I repowered my boat.  Now I am selling the old motor, a 2006 Mercury 50hp 2-stroke with remote controls.  A guy is coming next week to see it, but naturally, he wants to see it start and run for a few minutes.  I have all of the controls, but can't seem to figure out how to get it to turn over.  I connected a water hose.  I connected a battery.   The trim switch works when the battery is connected.  I connected the wiring harness, but when I turn the key, nothing happens.  No click.  Nothing.  What am i missing?  Is there a kill switch?  What should I look for?  There are several other wires/connectors coming out of the wiring harness, but I have no idea what they would connect to.  Is there some kind of testing harness for this sort of thing?  If so, does anybody have one that I could borrow?  Thanks.

[Booner]

It could be the man overboard pull switch. You have the keyset? Did it have it when it was on your boat before repower?

[hunterbob1]

Oh boy. Loss of continuity. No ground? Use ascrewdriver an jump the starter.

[hunterbob1]

Ghostbear?

[barrike]

7 minutes ago, Booner said:

It could be the man overboard pull switch. You have the keyset? Did it have it when it was on your boat before repower?

That's what I was thinking.  I have everything from when it was mounted, but can't figure out where it would connect to.  Yes.  It had it before.  Here is the harness and kill switch.

 

[hunterbob1]

Jump wire to kill switch

[barrike]

2 minutes ago, hunterbob1 said:

Jump wire to kill switch

Which wires?

[hunterbob1]

7 minutes ago, barrike said:

Which wires?

Do you see a black and yellow?

[barrike]

Yes.  Black + black/ yellow stripe

[hunterbob1]

1 minute ago, barrike said:

Yes.  Black + black/ yellow stripe

Jump it with a wire with alligator clips. Also Engine neutral switch needs to know if it's in neutral. Another switch that needs to be bypassed.

[barrike]

2 minutes ago, hunterbob1 said:

Jump it with a wire with alligator clips. Also Engine neutral switch needs to know if it's in neutral. Another switch that needs to be bypassed.

Ok.  which one is that?

[hunterbob1]

Did you jump the starter motor?

[barrike]

no.  i didn't

 

[hunterbob1]

Just now, barrike said:

no.  i didn't

 

Why not

[Bucndoe]

If you winterized it your plugs may not be fully seated and/or connected