Ok for those that have been reading ive been having a hell of a time with this. I have put 145 147.5 and now 155 main jets in my bike. I am running like sh*t . So I took a picture of my plug. This is a brand new plug i warmed the bike with an old plug then ran this wide open. Its kind of hard to see but, the first threads are brand new no color change, the tip is kinda greyish at the bottom (towards threads) tannish in the middle and the greyish at the top. The center plastic is white still. This is a run of about 1/4 mile wide open running through the gears. I am at about 1500 feet in oregon which is kind of a damp state. Any help is greatly appreciated.

Oh yea let me add the pic.
http://webpages.charter.net/bloopers/images/plug.jpg

 

well main jets are a great thing, but sometimes its not them thats the problem, u also have to adjust your needle clip positions, and your piolet jets, and your air/fuel mixture screw

 

I was told that on the top end, all that matters is the main jet. My bottom end is fine everything from 0-3/4 throttle is perfect its just the top end that sucks ***. If i rode it around normal my plug would be different colored, but im trying to adjust full throttle.

 

well, like u said bottom end power is from ur air/fuel screws, and piolets. i might still try to adjust your needle clip position, or switch toa bigger needle.

 

So bigger needle will add more gas correct? So that will take away lean ness?