bike is a new 2012 yz125 Jetting is 430 main, 40 pilot and 2-1/4 out on air screw which is all suggested stock. How does this plug look after first full day of riding? Little rich or pretty normal? The electrodes themselves have a nice carmel tan color, but there is a little oily residue in the interiour walls around it. Trying to learn more about jetting. What is a good amount of time to put on a plug to determine if jetting is good or not?