Help with this wire??

[jeffconnell12]

Hi guys,

I just finished reinstalling my merc 140hp but was left with one wire i didn't document. It runs from a relay/solenoid and appears to be a ground (i assume because its relatively thick, black and has a large terminal ring on one end). It is the thicker wire running from where my finger is pointing to.

I took photos as i removed everything and can see this was never connected to the battery.. i can't find anywhere it may have been removed from but i assume somewhere on the block.

Can anyone ease my concern and confirm it is a ground wire? I accidentally grazed the positive on the starter with it and it made plenty of sparks.. no sparks after grounding it.

thanks!

 

[Bondo]

(i assume because its relatively thick, black and has a large terminal ring on one end).

Ayuh,..... My guess is to the ground stud on the flywheel cover/ block, where the battery ground cable goes,.....

 

[Bt Doctur]

Check for a wire that size coming from the pump motor If none, connect that wire from the pump motor body to ground. The smaller Black wirs are ok for a solenoid ground but not large enough for the draw from the pump.