Ignition coil I.d

[Toddscool]

Hello first time post. found a 2007 Troy bilt zero turn push mower with a sweet Kawasaki engine on it in the trash, the machine required basic fixes and fired up first shot, I noticed it had a key start that was missing when I found it. I’d like to make my own key start for this mower, I found 3 wires coming from the starter, 1 of the wires confuses me to its function it’s a thin black wire that runs up to a copper winding attached to the ignition coil. What is it’s purpose? Kill switch for the key? Battery charger? Time Machine? Thanks.

 

[txmowman]

What is the engine code. Any labels?

 

[Toddscool]

E/no FJ80VD16829

Code FJ180V-DS05-R

 

[txmowman]

The tiny coil off the side of the ignition coil acts as a small charging or lighting coil for something on the mower that needs power. Is this what you are referring to?

 

[Toddscool]

That is exactly what I was talking about. Maybe a charger for the battery?

 

[txmowman]

Yes, that could be.

 

[Toddscool]

Thank you!