Ok so I have posted before about my sled and I did rebuild the carbs I replaced the needle and seat and main jet. Now the sled will only start if I hold the throtle in all the way and I have to hold it in about 1/2 inch to keep it iddling or it will stall. Also I noticed that gas is leaking out of one of the overflow lines on the right carb but not the left. Also it looks like its leaking oil from somewhere and smokes really bad when pushed hard. Also it sounds like its miss firing at low rmps. Also I don't know if this is normal but the clinders heat up a ton after running about 5-10 min. Any help would be very VERY much appreciated. I feel this problem is beyond me fixing. Also is it worth fixing or should I just get it running and dumb it thanks