I just got done reading the sticky plug reading 101 thread. Great thread!
I was curious about a couple of things though:
A. I noticed that it was stated that the more lean a bike runs, the closer the "fuel ring" gets to the bottom of the insulator. WHAT is the bottom? the end towards the porcilin side of the plug? or the end that has the "gap" on it?
B. What is a good thickness for the fuel ring? and what color is it supposed to be? Is it supposed to be one consistant color all the way down the insulator? And does the color of the "nose" of the insulator even matter?
Lastly, is the "main" jet the only one you adjust to make the bike leaner/richer to test your plugs? Does anyone even bother with the "needle"?? what exactly is the "needle" for?
As you can see I'm new to tuning dirtbikes. Thanks for any info :)
I was curious about a couple of things though:
A. I noticed that it was stated that the more lean a bike runs, the closer the "fuel ring" gets to the bottom of the insulator. WHAT is the bottom? the end towards the porcilin side of the plug? or the end that has the "gap" on it?
B. What is a good thickness for the fuel ring? and what color is it supposed to be? Is it supposed to be one consistant color all the way down the insulator? And does the color of the "nose" of the insulator even matter?
Lastly, is the "main" jet the only one you adjust to make the bike leaner/richer to test your plugs? Does anyone even bother with the "needle"?? what exactly is the "needle" for?
As you can see I'm new to tuning dirtbikes. Thanks for any info :)