Who knows? I usually avoid commenting on 12-volt conversion problems because you never know what creative approach somebody did.
I noticed the 2 red wires on the same end of the resistor and initially thought the same as rusted nuts. But I then noticed there is also a black wire on the other end of the resistor. What, if anything, the resistor is doing depends on what the other end of each wire is connected to.
The red wire matches the added wire from the resistor to the coil. Therefore I assume it was added as part of the conversion and goes to the obvious place. If the greasy black wire goes to the ignition switch, the resistor is wired properly to drop voltage to the coil. To know if it is wired wrong, the first thing you should do is find the other end of the red wire. The prior responses assume it goes to the ignition switch.
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Today's Featured Article - Tractor Traction - by Chris Pratt. Our first bout with traction problems came when cultivatin with our Massey-Harris Pony. Up till then, this tractor had been running a corn grinder and pulling a trailer. It had new unfilled rear tires and no wheel weights. The garden was already sprouting when we hooked up the mid-mount shovel cultivators to the Pony. The seed bed was soft enough that the rear end would spin and slowly work its way to the downhill side of the gardens slight incline. From this, we learned our lesson sinc
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