color of combustion

[blackduc98]

Does anyone have experience with a Gunnison Colortune spark plug? It has a glass insulator instead of ceramic, and gives you the ability to look at the color of combustion flame. Sounds intriguing to me. Anyone use one of these gizmos?

http://www.gadgetjq.com/ctune.htm

 

[JD_MXRacer]

they all seem to be talking about motorcycles on there and theyre talking about having more than one sparkplug. would it work on dirtbikes?