Readin plug color

[Lemonhead]

How much time or distance at WOT do you need to get enough color to get a good read. Do you use a fresh plug for each test run or can you use a used one as long as it's not fouled or heavily sooted.

 

[Rich Rohrich]

Here are a couple of lnks that should help you out.

http://justkdx.dirtrider.net/carbtuning.html
http://dirtrider.net/forums3/showthread.php?s=&threadid=48348
http://dirtrider.net/forums3/showthread.php?s=&threadid=5308

 

[Lemonhead]

Thank you sir.