Hi! Here is my first post on this site.I found a lot of good info before but nothing on my present issue. So here it is, I have a YZ450F 2007 and I just changed the water pump oil seal and the fuel screw. I put a Zip-ty fuel screw also the JD jetting kit for my model. After everything was done, i did start up my bike. It did start on the first kick. After few minute to let it warm up, while ajusting the fuel screw I was bliping the gas to find to good spot of the fuel screw and here start my problem... On blip, a blue smoke was going out of the pipe. First time ever it heppened. So I decide to go run the bike a little hoping it will correct it, but after few minutes again, back at my place, the blue smoke was worst. It was smoking all the time, so I kill the engine. I look my spark plug and it was cover with engine oil, still wet. Anyone have any idea, maybe the rings ? what I should look for ? Thanks for any help, it will be appreciate.