I would like some help. I have a 1994 force 40hp that has white smoke. I am using 50:1 ratio. The motor stalls in idle as well. At speeds above idle it seems to run great(except for the white smoke). I also noticed that when I took the cover off and gave it some gas, that I could see what appeared to be a small stream of water coming from one of the seals on top of the motor? How do you adjust the idle. Is it the screw with the spring on it? If it sound as though I am a rookie you are correct. 