We have an 8N that's been converted to 12v. So far, we've replaced the battery, ignition switch, and solenoid. But in working with those, we accidentally moved the spark plug wires and they got eaten by the belt on the alternator. None of our local stores had the right set or could even order them so we resorted to making our own. The local car parts place sold us silicone core 7mm wire and we made our spark plugs. However, now that we've made and installed them, we still can't get it to start. Battery and alternator both tested good and it'll turn over but we're not getting spark. I was wondering if maybe it's the silicone wires? Will an 8N work with silicone core wires for spark plugs? The old ones were copper but the auto parts store assured us that they'd work the same but I was hoping for a second opinion. Thank you for any help and guidance!