Posted by rtr on July 07, 2012 at 13:19:28 from (74.248.177.68):
I have a Cub Cadet 100 Lawn Mower that is giving me trouble. I just acquired a wiring diagram, and decided to test some things. I remember reading somewhere where you said a simple "spark test" is relevant to trace down a problem. My problem is that when you hook up the battery, I get a spark on the (-) post when the lead is touched to it. The (+) post is already hooked up when this happens.
With the (+) post hooked up, and the (-) post disconnected; I decided to test the connections at the VR. I first disconnected the (F) wire, then touched the (-) cable to the battery, still got a spark. I re-connected the (F) wire. Then I disconnected the (BATT) wire from the VR, and did the same test at the battery. NO SPARK. I reconnected the (BATT) wire. I then, tried the (L) wire at the VR. NO SPARK at the battery. I then re-connected the (L) wire at the VR.
WHAT DOES THIS TELL ME? WHAT DO I NEED TO DO FROM HERE?
Also, FWIW this tractor is equipped with the 12 volt "starter/generator" combo
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