After having the oil drain plug fall off my L160 while mowing (oops), I bought and installed a newer Kohler Command 16hp engine. Since the wiring was different (two wire coil, different connector), I installed my old single-wire coil and wiring harness on the 16hp engine. Now, when I connect everything and hook up the battery i begin to get smoke from the stator. Is this because of my wiring, or could it be from the mower itself since it sat in the weather for a few weeks until I found an engine?