sparkplug color??

[65fury]

Well im still trying to get my bike tuned... but no luck, and on top of trying to tune it i dont even know if im running rich or lean??? my plugs are grey... not tan or white... just grey. Almost like they look when new... why?

jason

 

[KJShover]

not tan or white... just grey. Almost like they look when new... why?

Your on the lean side of things.

 

[Damon]

You want to look in two locations for proper plug color. 1st look at the rim on the plug, this color with indicate the slow speed air/fuel. 2nd look at the color of the porcelain located in the center base of the plug, this will indicate the air/fuel of the mid~high rpm range. If every thing is gray in color then I would think you are very close to a proper tune.

 

[KJShover]

Here is what a good plug looks like. Your going to want a light tan.

More info:
http://www.wallaceracing.com/plug-reading-lm.html

 

[65fury]

Wow i didnt know a sparkplug could tell you so much... well mines like this, the base ring is BLACK and the strap is grey, i never noticed the porcelian color. ill check tomarrow. thanks

jason