I have a 04 cr125 and I went out on a trail ride this past weekend and the bike fouled 2 plugs, when I would pull them out they would be covered in a black oily residue, I'm wondering if it was just me not opening the bike up enough because it was my first weekend riding it or if something else could be wrong. this is the year with electric power valves if that makes any difference. I don't think it's jetting because the bike ran great except right before the plug went. Any insight is appreciated! Thanks!