lately I have been fouling a lot of plugs.. I mean one a ride or more... This is what I have noticed Put in a new plug go riding bike runs fine live it set till it cools down 30 maybe 45 min. When I start the bike bingo fouled plug.. while the bike is setting I leave the gas pitcock turned on.. other than that I don't touch it... I cleaned the carb still no good... I need help my old 2 strock was easier on plugs..