I was looking through my newest LMC truck catalog and came across this:

"Colortune you engine with this unique test spark plug for peak performance. Take the guess work out of adjusting your carburetor with Colortune. A unique Test Spark Plug with a glass top allows you to see the gasoline/air ratios fire with different colors. All you do is adjust the carburetor until you see blue and your engine is precision tuned for peak performance and economy. If you can change a spark plug, you can use "Colortune"."

The price is $49.95, and I thought the $10 Iridium NGK plugs I use are expensive.[img]i/expressions/face-icon-small-smile.gif[/img]

Well, what is everyones opinion?

 

Looks good, if they proove themselves i'l buy one from them....
i'm having a very hard time with my jeting, and this looks like it mite work...

 

Where did you see them at? Sounds good if they work. I'd buy one for sure even though my jetting is right now.

 

Those plugs have been avalible for quite a while, ten years here or there. From what I have heard they are good but do not use them to ride around on.

Smitty

 

But how do you look at them while theres a load? Lean over the side of your fourhwheeler at WOT and have a look?

 

here is the web site if you want to see how it works http://www.aep.bigstep.com/Color.htm[img]i/expressions/face-icon-small-cool.gif[/img]

 

sounds like a great idea, but how could you use it if you want to on a raptor??,because of the plug goes way down inside of the head.