I've seen a few posts from folks regarding using the Colortune plug to analyze their combustion, and I'm considering buying one. I'm curious -
- if you have one, was it worth the purchase
- If the Colortune plug shows a blue burn, would that be the correct air/fuel mixure to eliminate the backfire, but yet be hot enough to cause engine problems?
- If you no longer need it, would you be interested in selling it?