Where does this wire go?

[LarryJohnson]

Found this loose wire under the seat of a Murray 425009x8A riding mower. I'm hoping it's the reason I can't get the B&S motor started. Don't see any other loose ends, and can't understand the wiring diagram. Thanks.

Untitled by Larry Johnson, on Flickr

 

[Rivets]

Do not double post!!! Will get very confusing.