Oil Change Epic Fail - overfill now won't start.

[usdm_b18]

Exactly.Scraping and sandpaper are words that don't belong in a sentence with sparkplugs.The fouled part of the insulator that causes the problem is deep down at the bottom.A squirt of contact cleaner might help.But i doubt it.

That I did not know -- I suspect that's it. I've been looking at the two contact points (electrode and arm)

[Wingboy]

Before you go spend more cash,wait for someone like frekeyguy to chime in.