My engine is .090 over, basically im at max stock 209cc. I put a new stock carb on it and did a plug chop. I was prepared to open my vitos jet kit and realized my plug was a perfect brown color. Is this right? I have open airbox, full dg oval2 exhaust, +2 mag key installed, and it runs freaking great! 240 stock main, Vitos starts at 290 main, Should i try it? Leave it be? Its not making much sense. I ran my blaster sunday for about 4 hours chasing around a rappy 700r. Consistantly checking the plug for changes, Its still a brown, almost a deep brown. Input?!