Had all thge fairings off my bike today (yzf 750) trouble shooting a missing cylinder #4, and before I got too far into it I noticed that the spark plug was arcing through the boot to the head. Anyone seen this? I've heard of carbon tracking, where the boots get old and start actually conducting to a degree. The boot looks fine visually, no cracks or anything. Could this be anything else?
Anyways, this is what I figure what's causing the missing, and I'm on the hunt for a new boot asap, if anyone has one.