hi i have a 1992 lt250r with themods listed below. In the summer it runs great and dosent fowl any spark plugs. In the colder mounths it will fowl like 3 a ride. I tried playing with the gas mixture to oil ratio, but it didnt do much. Any one know the problem?
thanks
ron

 

I guess you've tried rejetting.cold air and warm air makes a difference on your jetting.