Spark plug fouling out with fouler attachment on. What's the issue?
Melts plastic tip at end of plug and also metal completely off, that's with the de-fouler attachment on. Within week have to keep changing plug. Only doing on 1 plug out of the 4. Just changed wires and its also melting very end of wire up,the end that connects with plug. What the most obvious things i can do or check that may cause this?? Cheapest ways to fix??