Anyone know where does this wire plugs into??

[Mikeanne89 1]

It color is light blue. The second pic it's next to the orange wire

[oliver2-44 11,412]

What year, model tractor.

 

[WHX?? 56,225]

[Bar Nuthin 2,338]

If you post the model number, someone on here will most likely link you to the wiring diagram.

 

[gwest_ca-(File Mod) 12,170]

Welcome to Red Square

May be the incorrect model and year but see a low oil relay

 

[Mikeanne89 1]

Hi everyone, I guess I could have giving more information. The model is 312-B, 2112K806. I believe it was bought in 1979. I put a new battery in it and when I turn the key nothing happen. When looking around I saw the wire not connected. Thanks for your response 

[953 nut 65,439]

1 hour ago, Mikeanne89 said:

I put a new battery in it and when I turn the key nothing happen.

Was the engine turning over and starting by turning the key with the assistance of jumper cables prior to the new battery being installed?

There are several things in the wiring that could cause the starter to not operate. Taking a systematic approach we can find out what is working properly and what needs to be corrected.

There are a couple of light blue wires in the system but the one in the photo may have been disconnected earlier by a previous owner and may or may not be a problem.

 

Why won’t my starter turn over from the key switch?\

Lets take a logical step by step inspection of your starter problem.

Is your PTO in the ON position, a correctly wired Wheel Horse will not start with the PTO on.

Have you cleaned and tightened all electrical connections including grounds?

Are all fuses good and fuse holders cleaned?

If these have all been done, we can check components of the starting system as follows; don’t skip a step or you may miss the problem.

Be sure the transmission is in neutral and the parking brake is set.

Take a pair of automotive jumper cables and connect the black cable to your battery  "-" and a good clean spot on the engine. Now connect the other cable to the large post on the starter and touch the other end to the battery "+" terminal, does the starter turn over? If the starter turns over the battery and starter are good. If it didn't turn over try the same steps with the battery in your car/truck, if that cures the problem then the "good" battery wasn't so good.

Presuming the starter turned over move the jumper wire from the starter post to the other end of the wire going to the starter which is one of the large posts on the solenoid. If the starter turns over when the battery is touched by the jumper as before then that cable is good, if not you have found your problem.

Presuming the starter turned over move that jumper to the other terminal of the solenoid, connect the other end to the battery and use a small piece of wire to temporarily connect the battery "+" terminal to the small terminal on the solenoid, this should cause the solenoid to close and the starter to turn over. If not, the solenoid is probably the problem.

If this was successful remove the large jumper cable and use the small jumper wire to the small terminal of the solenoid, the solenoid should close and the starter turn over. If not the cable to the battery is the problem.

Presuming all of these have been successful remove the black jumper wire and repeat the small jumper to small terminal, if the starter turns over the ground is good.

If all of these components test good then remove your ignition switch, be sure the transmission is in neutral, parking brake on, clutch depressed and PTO off. Use a small jumper to connect the terminals that were connected to the “B” and “S” terminals of the ignition switch. If the starter turns over then the PTO switch and other safety switches are operating properly and your ignition switch may be bad

 

 

 

[Treepep 1,111]

Looks to be black with blue stripe same as the wire to the far right in your picture that appears to be grounded.  So maybe a ground or plugs in above that far right wire???