Posted by JohnV2000 on April 02, 2019 at 14:42:26 from (174.229.0.241):
I bought a voltage meter so I was busy checking my tractors electrical system this afternoon.
This is the first time I have ever used a voltage meter on a vehicle of any kind, so I hope I did it correctly.
It is my understanding that the negative terminal of the battery is ground and the positive side of the battery is what flows to the starter and distributor coil.
First things first, I tested my battery voltage. I got 12.0 volts for the battery.
Next, I left the negative end of the voltage meter connected to the negative terminal of the battery, and used the positive wire of the voltage meter to check other parts of the tractor. First I checked the wire that I presume goes to the starting motor. That is the first picture I posted. That also read 12.0 volts.
Second, I checked what I guessed is the distributor coil wire. I traced the wire from the distributor coil back to the battery, so I think that is the input for the distributor coil. In the second picture, I circled what I checked next. There was a small section of exposed wire right before it connected to the distributor coil, so I checked there. That showed only 200 millivolts, 0.2 volts. I used the starter to turn over the engine while I checked the voltage.
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