Getting a weak spark to MAG cylinder. Performed check with ohm meter on coil P/N 4060153. Should read 0.35, getting 0.6 - 0.7. Also, the lead to MAG cylinder gets no reading while the other two are reading 1560 ohms (spec). I trimmed the wire back 3/8 inch, still no reading. The plug wire leads are molded into the coil, correct? I have found replacement coils online, but where can I get plug wires?