I pulled the plugs on my 700 Pro X the other day and noticed that the pto side plug was a dark gray color and the mag side was a perfect chocolate brown color? I know these are good running colors but I do believe that both sides should be the same color. I have been riding in temps from 0-30 degrees and have the stock jetting( 440) with UNI air filters, V forse 3 reeds, reed spacers and a can. Is something pluged? Do the carbs need inspection? Also I serviced the Exhaust Valves the other day and noticed Alot of oil buildup in the bellows!!! I know that is not right!!! I ride at a rather brisk pace with very little idling!! Should I back the oil pump down??