Hey guys, I’ve been out of the Atv game for a year or so but I recently picked up a 2000 400ex that needed some work. When I bought it she had some carb issues, some how the screws came off the slide so the slide was not lifting. I fixed and rebuilt the card and it runs greats. When I took it out for her first ride I noticed when I give it a lot of gas it will blow blueish white smoke (oil). It does not have any powerloss, the oil seemed a bit watery so I changed it but it still smokes. Sometimes it seems to go away, my question is do you think it’s valve seals or rings? It idles fine and there is no smoke at idle. There is also no weird engine noises. The quad is all stock besides no air box lid and I have the air fuel screw turned out 2 turns. I thought it was just rich at first but fuel would be black ish smoke. If anyone could help me out that would be great! Thanks, nick!